Statement I: At any specific instant, the activity of radium-226 is less than Polonium-210 for equal mass of sample because the half-life of radium and that of polonium are 1600 y and 140 d respectively.
Statement II: The activity of a radioactive sample is proportional to its decay constant.

(A) Statement I is true, statement II is true, statement II is a correct explanation for statement I.
(B) Statement I is true, statement II is true, statement II is not a correct explanation for statement I.
(C) Statement I is true, statement II is false.
(D) Statement I is false, statement II is true.

Options

A. Statement I is true , statement II is true , statement II is a correct explanation for statement I
B. Statement I is true , statement II is true , statement II is not a correct explanation for statement I
C. Statement I is true , statement II is false
D. Statement I is false, statement II is true .

Answer

A