If the $$\frac{{{\text{M}}{{\text{U}}_{\text{x}}}}}{{{\text{M}}{{\text{U}}_{\text{y}}}}}$$ for individual A is greater than the $$\frac{{{\text{M}}{{\text{U}}_{\text{x}}}}}{{{\text{M}}{{\text{U}}_{\text{y}}}}}$$ for individual B, it is possible for individual A to gain by giving up

A. Y in exchange for more X from B

B. Y in exchange for more X from A itself

C. Y in exchange for less X from B

D. X in exchange for less Y from A

Answer: Option B