To answer this question, we need to analyze the given statements and determine if the third statement is true, false, uncertain, or none of the above.

Let's go through each statement:

1. All the trees in the park are flowering trees. This statement means that every tree in the park is a flowering tree. It indicates that there are no trees in the park that are not flowering trees.

2. Some of the trees in the park are dogwoods. This statement means that there are at least a few trees in the park that are dogwoods. However, it does not provide information about whether all dogwoods are present in the park or if there are any dogwoods that are not in the park.

3. All dogwoods in the park are flowering trees. This statement implies that every dogwood in the park is a flowering tree. It further suggests that there are no dogwoods in the park that are not flowering trees.

Based on the first two statements, we can conclude that all the trees in the park are flowering trees, and some of them are dogwoods. Since all dogwoods in the park are flowering trees, it is logical to conclude that the third statement is true.

Therefore, the correct answer is A) true.

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• Wrong explanation

To answer this question, we need to analyze the statements given and determine their logical consistency.

Statement 1: Mara runs faster than Gail. Statement 2: Lily runs faster than Mara. Statement 3: Gail runs faster than Lily.

Let's analyze these statements one by one:

Statement 1: Mara runs faster than Gail. This statement is clear and consistent. We can assume it to be true.

Statement 2: Lily runs faster than Mara. This statement contradicts the first statement. If Mara runs faster than Gail and Lily runs faster than Mara, it is not possible for Gail to run faster than Lily. Therefore, this statement is false.

Statement 3: Gail runs faster than Lily. This statement contradicts the second statement. Since the second statement is false, we cannot determine the truth value of the third statement based on the given information.

Therefore, the correct answer is B. false.

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• Wrong explanation

To answer this question, we need to analyze the given statements and determine the validity of the third statement.

Statement 1: All the tulips in Zoe's garden are white. Statement 2: All the pansies in Zoe's garden are yellow.

Based on these two statements, we can conclude that there are only white tulips and yellow pansies in Zoe's garden. However, the third statement claims that "all the flowers in Zoe's garden are either white or yellow."

Since the third statement is a generalization that includes all flowers in Zoe's garden, we cannot be certain if there are any other types of flowers apart from white tulips and yellow pansies. It is possible that there may be other types of flowers in different colors.

Therefore, the correct answer is C. uncertain.

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• Wrong explanation