This is the correct option.

Interferons (IFNs) are a group of signaling proteins. 

Plasminogen adopts an open form that can be converted into active plasmin by a variety of enzymes, including tissue plasminogen activator (tPA), urokinase plasminogen activator (uPA), kallikrein and factor XII.

Glycogen is a multibranched polysaccharide of glucose that serves as a form of energy storage in animals and fungi. Cellulose is an organic compound with the formula (C₆H₁₀O₅)n, a polysaccharide consisting of a linear chain of several hundred to many thousands of β(1→4) linked D-glucose units. Starch or amylum is a carbohydrate consisting of a large number of glucose units joined by glycosidic bonds. This polysaccharide is produced by most green plants.

Autocrine signalling is a form of cell signalling in which a cell secretes a hormone or chemical messenger that binds to autocrine receptors on that same cell.

The posterior pituitary is the posterior lobe of the pituitary gland which is part of the endocrine system. 

Stensen duct is the route that saliva takes from the major salivary gland into the mouth.

This is the correct option.

Inflammation of the lacrimal glands is called dacryoadenitis.

Option (2) is the correct answer.

Epigenetics is the study of cellular and physiological trait variations that are not caused by changes in the DNA sequence.

A sigma factor (σ factor) is a protein needed only for initiation of RNA synthesis. It is a bacterial transcription initiation factor that enables specific binding of RNA polymerase to gene promoters. 

Gymnemic acids are glycosides isolated from the leaves of Gymnema sylvestre (Asclepiadaceae). Gymnemic acids like ziziphin and hodulcine are anti-sweetener compounds.

P-glycoprotein is a multidrug resistance protein.

Pluripotency refers to a stem cell that has the potential to differentiate into any of the three germ layers: endoderm, mesoderm or ectoderm.