If two events A and B are such that P (b...

If two events A and B are such that `P (barA) = 3/10 and P(A nn barB) = 1/2`, then `P(A nn B)` is

A

`(1)/(2)`

B

`(1)/(3)`

C

`(1)/(4)`

D

`(1)/(5)`

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