A.\(\dfrac{{AB}}{{ab}}Dd \times \dfrac{{AB}}{{ab}}Dd\)
B.\(\dfrac{{Ab}}{{ab}}Dd \times \dfrac{{aB}}{{ab}}\;dd\)
C.\(\dfrac{{Ab}}{{aB}}{X^D}{X^d} \times \dfrac{{aB}}{{ab}}{X^D}Y\)
D.\(\dfrac{{AB}}{{ab}}{X^D}Y \times \dfrac{{aB}}{{ab}}{X^d}{X^d}\)

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