Step-by-step explanation:
option A is correct
as, point S lies on = -7, 4
and point T lies on = 5, 4
so, diameter is 12 so radius = diameter/2 = 12/2 = 6
and center is - 1 , 4 as the diameter lies on 4 in y axis
hope this answer helps you dear...take care and may u have a great day ahead...also may ur exam/test/assignment goes well!.
