Answer:
Option B:11.9
Explanation:
We are given that B is the mid point of AC.
Length of AC=23.8 units
We have to find the length of AB.
We know that when B is the mid point of AC then
AB=BC
AB+BC=AC
By using segment addition property
Let AB=x
Then , BC=x
Substitute the values then we get




Hence, length of AB=11.9 units
Option B is true.