Correct option: (c) Troponin and myosin - Complex proteins in striated muscles
Explanation:
Troponin is a protein which is found on actin filament and myosin protein is found in myosin filament. Both actin and myosin are complex proteins in striated muscles.
Thymosin is a hormone secreted by the thymus that stimulates development of Tcells. Prolactin is a hormone released by the pituitary gland that stimulates ** development and milk production in *****. Rhodopsin, also known as visual purple, is not a hormone. It is a biological pigment in photo receptor cells of the retina that is responsible for the first events in the perception of light.