*/*_Enrichment of uranium is done to increase the concentration of __________ in the natural uranium.?

*/*_Enrichment of uranium is done to increase the concentration of ___

1.	/_Enrichment of uranium is done to increase the concentration of __________ in the natural uranium.?
A.	U-238
B.	U-233
C.	U-235
D.	Pu-239
Answer» D. Pu-239