Answer: C. to move around from one setting to another.
Explanation: When writting nonfiction, the author have to be well plotted such that such makes and give his writing more freedom in moving around form one setting to another.
B - Sebaceous Gland
The Sebaceous Gland is an accessory organ of the integumentary system.
Hope this helps!
Answer:
D. Allow him to go around obstacles too difficult.
Case study. the others require control groups.
