Refer to the Figure

Multiple Choice

Refer to the figure.
Considering the food web, imagine a circumstance where a new, mutually beneficial relationship develops between H₂ and H₃, increasing both of their numbers. The effects of this on P₂ and C₂ are best described as

A) a direct negative effect on P₂ and a trophic facilitation effect on C_2.
B) an indirect positive effect on P₂ and a direct negative effect on C₂.
C) a trophic facilitation effect on both C₂ and P_2.
D) a direct negative effect on both C₂ and P_2.