The four atomic species can be represented as follows. Out of these, the two species which can be termed isobars are :
(i) `._(60)^(201)X`
(ii) `._(61)^(200)X`
(iii) `._(58)^(200)X`
(iv) `._(60)^(203)X`.
A. (i) and (ii)
B. (ii) and (iii)
C. (i) and (iii)
D. (i) and (iv)