(A) Zinc is not an transition element
(B) Any element with incompletely filled d-orbital is called a transition element.
$\begin{array}{1 1}(a)\;A\;is\;true,B\;is\;true&(b)\;\;A\;is\;false,B\;is\;true\\(c)\;Both\;A\;is\;false,B\;is\;false&(d)\;\;A\;is\;false,B\;is\;true\end{array}$