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

A

$$M_A = 50 \times 10^{-3}$$ and $$M_B = 25 \times 10^{-3}$$

B

$$M_A = 25 \times 10^{-3}$$ and $$M_B = 50 \times 10^{-3}$$

C

$$M_A = 5 \times 10^{-3}$$ and $$M_B = 10 \times 10^{-3}$$

D

$$M_A = 10 \times 10^{-3}$$ and $$M_B = 5 \times 10^{-3}$$