Step-by-step explanation:

Case 1: In triangle ABC, AB=5 and BC = 6

Here, the length of AC must be LESS THAN THE

SUM of other two sides and GREATER THAN THE DIFFERENCE of the other two sides:

6-5 < AC < 6+5

1 < AC < 11.

Thus, it's possible that AC = 7.

Eliminate any answer choice that does not include III (A, B and C).

Case 2: A <--5 miles--> B <--6 miles--> C

Here, AC = 5+6 = 11 miles.

Eliminate D, which does not include I.

The correct answer is E.

In the following case, AC=1:

C <--1 mile--> A <--5 miles--> B.

hope this can help (✯ᴗ✯)