For two events A and B, if $P(A) = 0.6$, $P(B) = 0.5$ and $P(A\cup B) = 0.8$. Then which of the following statements are TRUE ?

A. $P(A\cap B) = 0.3$.

B. A and B are independent events.

C. $P(A'\cap B') = 0.2$.

D. A and B are mutually exclusive events.

Choose the correct answer from the options given below:

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