Skeletal Muscle Basic Anatomy

Which of the following statements are correct regarding skeletal muscle?

A:	Muscle bundles are held together by collagenous connective tissue layer called fascicle.
B:	Sarcoplasmic reticulum of muscle fibre is a store house of calcium ions.
C:	Striated appearance of skeletal muscle fibre is due to distribution pattern of actin and myosin proteins.
D:	M line is considered as functional unit of contraction called sarcomere.

Choose the most appropriate answer from the options given below:

1.	C and D only	2.	A, B and C only
3.	B and C only	4.	A, C and D only

Three types of muscles are given as a, b and c. Identify the correct matching pair along with their location in human body:

Name of muscle/location

1.	(a) Skeletal - Triceps (b) Smooth - Stomach (c) Cardiac - Heart	2.	(a) Skeletal - Biceps (b) Involuntary - Intestine (c) Smooth - Heart
3.	(a) Involuntary - Nose tip (b) Skeletal - Bone (c) Cardiac - Heart	4.	(a) Smooth - Toes (b) Skeletal - Legs (c) Cardiac - Heart