Which term refers to words or ideas that are clearly expressed and leave no question as to their meaning?
a. explicit
b. connotative
c. implicit
d. figurative

A. Explicit.

Explanation: Explicit means something fully revealed or expressed without vagueness, implication, or ambiguity, it is the opposite of implicit (something suggested but not communicated directly). So the definition "words or ideas that are clearly expressed and leave no question as to their meanings" is referring to the meaning of "explicit", therefore the correct answer is the corresponding to option A.

the sentence that best describes the tone of the passage from the radio broadcast compared to the passage from the book is b. the radio broadcast has a more surprised tone.

consider the text evidence: in the passage from the book, the description is more matter-of-fact. it is simply describing the things resembling little grey snakes, but there is no urgency in the description. on the other hand, in the passage from the radio broadcast, there is definetely urgency (you can tell from the expression used, "good heavens", which clearly indicates surprise.)