Question

part a
what does the word perceptible mean as it is used in paragraph 1?
a. able to be observed
b. clear and usable
c. in the distance
d. through the woods
part b
which phrase from paragraph 1 helps the reader understand the meaning of perceptible?
a. “... could not see...”
b. “... guided our course by the mountain ranges.”
c. “the case looked dubious...”
d. “... his instinct was as sensitive as any compass... ”

Explanation:

The word "perceptible" means able to be perceived or observed. In Part B, the idea of perception is related to sensitivity of an instinct, similar to how something can be observed. The phrase about the sensitive instinct gives a context - related clue to the meaning of "perceptible" as it implies being able to detect or observe something.

Answer:

Part A: A. able to be observed
Part B: D. "... his instinct was as sensitive as any compass ..."