Answer:
C
Step-by-step explanation:
The person above this should have the answer. It seems like nobody else is answering.
L.C.M. of 70,60,and 50=2×2×3×5×5×7=2100
<h2><u>Given:</u><u>-</u></h2>
- Points C = (-7,2) →

- D = (3,12) →

<h2><u>To </u><u>Find</u><u>:</u><u>-</u></h2>
<h2><u>Required</u><u> </u><u>Response</u><u>:</u><u>-</u></h2>
Let,
Midpoint of CD be (x,y).
WKT,




The Midpoint of CD ◕➜ 
Let,
The centre be O
Radius = CO & OD
Here, C = (-7,2) → 
O = (-2,7) → 






Radius of Circle ◕➜ 
<h2>Option D.</h2>
Hope It Helps You ✌️