Which of the Following Relationships Are True for All Types $\frac{\mathrm{T}_{\mathrm{C}}}{\mathrm{T}_{\mathrm{H}}}$

Which of the following relationships are true for all types of heat engines? (There may be more than one correct choice.)

A) e = 1 - $\frac{\mathrm{T}_{\mathrm{C}}}{\mathrm{T}_{\mathrm{H}}}$

B) e = $\frac{\mathrm{W}}{\left|\mathrm{Q}_{\mathrm{H}}\right|}$

C) e = $\frac{\left|Q_{H}\right|-\left|Q_{C}\right|}{\left|Q_{H}\right|}$

D) = $\frac{\mathrm{T}_{\mathrm{C}}}{\mathrm{T}_{\mathrm{H}}}$
$\left|\frac{\mathrm{Q}_{\mathrm{C}}}{\mathrm{Q}_{\mathrm{H}}}\right|$

E) e = 1 - $\left|\frac{\mathrm{Q}_{\mathrm{C}}}{\mathrm{Q}_{\mathrm{H}}}\right|$