momentum remains conserved during explosion

(A)     According to shown pieces net momentum of the pieces along X axis is –ve (impossible)
(B)    Net momentum of the pieces along y axis is non zero (impossible)
(C)    Along x-axis momentum remains positive

m₁v₁ – m₂v₂ > 0

$\frac{{\mathrm{m}}_1}{{ \mathrm{m}}_2}>\frac{{\mathrm{v}}_2}{{\mathrm{v}}_1}>1 \Rightarrow {\mathrm{m}}_1>{\mathrm{m}}_2$

(D)    Momentum conservation along x & y axes is possible for any mass ratio.