5 moles of AB$$_2$$ weigh $$125 \times 10^{-3}$$ kg and 10 moles of A$$_2$$B$$_2$$ weigh $$300 \times 10^{-3}$$ kg. The molar mass of A (M$$_A$$) in kg mol$$^{-1}$$ are:

A

M$$_A$$ = $$5 \times 10^{-3}$$ and M$$_B$$ = $$10 \times 10^{-3}$$

B

M$$_A$$ = $$25 \times 10^{-3}$$ and M$$_B$$ = $$50 \times 10^{-3}$$

C

M$$_A$$ = $$50 \times 10^{-3}$$ and M$$_B$$ = $$25 \times 10^{-3}$$

D

M$$_A$$ = $$10 \times 10^{-3}$$ and M$$_B$$ = $$5 \times 10^{-3}$$