If z is a multiple of 9 and w is a multiple of 4, is zw a multiple of 126?

[BTGmoderatorDC]

If z is a multiple of 9 and w is a multiple of 4, is zw a multiple of 126?

(1) z is a multiple of 21
(2) w is a multiple of 25


OA A

Source: Veritas Prep