The qualitative plots given represent the yield of the product [XY] at equilibrium in the reaction $$\text{X}(g) + \text{Y}(g) \rightleftharpoons \text{XY}(g)$$ as a function of temperature, at total pressures $$P_1$$ and $$P_2$$. The reaction is

A

endothermic and $$P_1 < P_2$$

B

endothermic and $$P_2 < P_1$$

C

exothermic and $$P_1 > P_2$$

D

exothermic and $$P_2 > P_1$$