Question

there is significant ____ in the top speeds of the worlds fastest animals, which partly results from differences in animals means of locomotion. the indian antelope, for example, can run up to 80 kilometers per hour (km/hr), while the white - throated needletail swift can fly at the astounding speed of 169 km/hr.

which choice completes the text with the most logical and precise word or phrase?
a equivalence
b ambiguity
c variation
d correspondence

Explanation:

The text mentions differences in top - speeds (e.g., Indian antelope at 80 km/hr and white - throated needletail swift at 109 km/hr). "Variation" means a change or difference. "Equivalence" (A) means equality, which is wrong as speeds differ. "Ambiguity" (B) means uncertainty, not relevant here. "Correspondence" (D) means a connection, not fitting the context of differences in speeds. So "variation" (C) is the most logical.

Answer:

C. variation