Answer: A) Flexibility.
Explanation: The connotation of a word is the meaning given by the context or even by the readers (or listeners) based on their emotions or personal experiences. It is different from the denotation of the word, which is its literal meaning. The denotation of the word "ability" is "possession of the means or skill to do something" but in this case, its connotation is "flexibility" because it is talking about the skills requiered to catch flying insects.