Pliable i think is the correct answer here
C) "During the 1300s, a secret passage helped free an English king who was taken captive by his enemies."
Explanation:
<u>A topic sentence must convey the idea of the whole paragraph.</u> <u>In that sense the paragraph here works on the idea of secret passages being historically significant</u> in the important events that changed the course of history.
Thus either the first sentence of the paragraph or this sentence fit the description stated above. Out of all the options given this statement directly refers to the theme and thus is the topic sentence.
