A, simile. Similes make comparisons using like or as
Ask what the theme of the paper is
Answer:
The flight crew <em><u>are</u></em> attentive to the passengers.
<em>(</em><em>you have already given the explanation.</em><em>)</em>
As crew is a collective noun your answer will be are .
Answer:
C. Searched
Explanation:
"Patiently" discludes any non-methodical search.
"Searched" is the only neutral term.