Which of the following are correct with respect to the unit of radioactivity?
(i) The SI unit of radioactivity is curie (Ci)
(ii) `1 Ci = 3.7 xx 10^(-10)` dis `s^(-1)`
(iii) 1 Bq `= 3.7 xx 10^(-10) Ci`
(iv) The SI unit of radioactivity is becquerel (Bq)
(v) 1 Ci ` = 3.7 xx 10^(10)` Bq
A. (i) and (iii)
B. (iv) and (v)
C. (i) and (ii)
D. (ii) and (iv)
