Reason (R) : It has a big, unstable nucleus.
A.Both A and R are true and R is the correct explanation of A.
B.Both A and R are true but R is NOT the correct explanation of A.
C.A is true but R is false.
D.A is false but R is true.
Answer:D
Reason (R) : It has a big, unstable nucleus.
A.Both A and R are true and R is the correct explanation of A. B.Both A and R are true but R is NOT the correct explanation of A. C.A is true but R is false. D.A is false but R is true.