Based on the excerpt, what does the word acute mean?

A. A geometrically narrow angle, less than 90 degrees.
B. Sharp
C. Over-stimulated
D. Delusional

A. A geometrically narrow angle, less than 90 degrees.

To determine the meaning of the word "acute" in the given excerpt, we can break down each answer choice and see which one matches the context.

A. A geometrically narrow angle, less than 90 degrees: This definition refers to the mathematical term "acute angle," which is not applicable in this context.

B. Sharp: This definition suggests that "acute" means something sharp, which could be a possible meaning in this context.

C. Over-stimulated: This definition refers to being excessively stimulated or highly excited, which does not seem relevant to the context provided.

D. Delusional: This definition refers to having false beliefs or illusions, which is unrelated to the context here.

Considering these options, based on the given excerpt, the most appropriate definition for the word "acute" is B. Sharp.

Based on the excerpt, the word acute means A. A geometrically narrow angle, less than 90 degrees.