It is given that P(A)=0.73 and P(B)=0.56 It is also given that:
[tex]P(A\cap B)=0.4088[/tex]The events are independent if:
[tex]P(A\cap B)=P(A)P(B)[/tex][tex]P(A)P(B)=0.73\times0.56=0.4088[/tex]Hence the events are independent.
Option A is correct.