What is the toxic component in the Type A behavior style?

Ambition

Cynical hostility

A hard$-$driving approach to life

Impatience

If $P(A)=0\mathrm{.}38,P(B)=0\mathrm{.}83,$ and $P(AB)=0\mathrm{.}24$; then $P(AB)=$

$1\mathrm{.}21.$

$\mathrm{.}76.$

$97.$

$1\mathrm{.}45$