Which Letter(s) in the Diagram of a Muscle Refer(s) to an Individual

Question

Which letter(s) in the diagram of a muscle refer(s) to an individual muscle cell? 
A)letter c only 
B)letters c, e, f, and i 
C)letter e only 
D)letters f and i 
E)letter i only

Accepted Answer

Letter e represents individual muscle cells, also known as muscle fibers. The other letters in the diagram represent other structures within the muscle, such as capillaries (c) and connective tissue (f and i).