Natural uranium is made up of | Mechanical Engineering

(a)    99.282% U238, 0.712% U235, 0.006% U234
(b)    99.282%  U235,  0.712%  U238,  0.06%'  U234
(c)    99.282% U234, 0.712% U238, 0.006% U235
(d)    99.282% U235, 0.712% U234, 0.006% U238
(e)    none of the above.

Ans: a