Suppose That A₁, A₂, and B Are Events Where A₁

Suppose that A₁, A₂, and B are events where A₁ and A₂ are mutually exclusive events and P(A₁) = .7, P(A₂) = .3, P(B│A₁) = .2, P(B│A₂) = .4. Find P(B) .

A) 0.60
B) 0.26
C) 0.21
D) 0.14
E) 0.28