Question

It is most important that a thesis statement

A. be clear and focused.
B. be short and simple.
C. have vivid descriptions and sensory details.
D. contain interesting content that grabs the reader's attention.

Answer 1

A. be clear and focused

A thesis is "a statement or theory that is put forward as a premise to be maintained or proved" (Google), and in order to maintain or prove a point, arguments must be clear and focused.