Biology question regarding muscles...

Question

Each thin muscle filament consists of

A) A pair of protein strands wound together.

B) A rod-shaped structure with heads projecting from each end.

C) Chains of myosin molecules

D) 6 molecules coiled into helical structure

The answer is no where in my book or google! Help

Answer 1

A) A pair of protein strands wound together - is the best answer, although they are made of actin in association with troponin and tropomyosin.