Answer:
<h2>18</h2>
Step-by-step explanation:
The formula of a distance between two points:

We have the points (5, -7) and (5, 11). Substitute:

This is what I got
Area= 31.83 rounded would be 32
Radius= 3.18 rounded would be 3
Diameter= 6.37 rounded would be 6
Your answer would be A because the radius of the circle is half of its diameter.
Hope this helps <3 :)