" A compound statement "p rarr q" is false only when "

A compound statement p or q is false only when

A compound statement p or q is false only when

A compound statement p or q is false only when

A compound statement p to q is false only when

A compound statement p to q is false only when

p rArr q is false is

A compound statement p and q is true only when

A compound statement p and q is true only when

A compound statement p and q is true only when

If the compound statement p rarr(-p vv q) is false then the truth value of p rarr(-p vv q) is respectively- (a) T,T(b)T,F(c)F,T(d)E,F