%_Cobalt - 60 is used as a source of __________ in medical therapy & industrial radiography._%

%_Cobalt - 60 is used as a source of __________ in medical therapy & i

1.	%_Cobalt - 60 is used as a source of __________ in medical therapy & industrial radiography._%
A.	X-rays
B.	≈í√¨-rays
C.	≈í√´-rays
D.	≈í√≠-rays
Answer» C. ≈í√´-rays