Δabc will undergo two transformations to give δa′b′c′. which pair of transformations will give a different image of δabc if the order of the transformations is reversed?

The

the full question is 

ΔABC will undergo two transformations to give ΔA′B′C′. Which pair of transformations will give a different image of ΔABC if the order of the transformations is reversed? 
a possible answer for such a question is

A ROTATION 180° CLOCKWISE ABOUT THE ORIGIN FOLLOWED BY A REFLECTION ACROSS THE Y-AXIS