Answer:
could be a midsegment of ∠ABC.
Explanation:
A midsegment of a triangle must be two things:
1. Parallel to the 3rd side, in this case,
.
2. Half the length of the 3rd side, in this case,
.
Since we don't know the lengths, we can only go off of 1. There is only one line that is parallel to
and it is
.
Hope this helped!