Please help me with question a) below. I have provided all the necessary information

Question 4 (Welfare) [15 points] Consider the following exchange eco- nomy with two individuals A and B, and two goods a and y; r; and y; denote individual i's respective quantities of the two goods. Individual A has an in- itial endowment of (CA; yA) = (1;0); her utility function is u(CA; yA) = CAYA Individual B has an initial endowment of (TB; yB) = (0; 1), her utility func- tion is v(TB; yB) = CByB. Assume the price of good x is equal to 1, P, = 1, so that the price of good y, py, measures its relative price.Plug the allocation into the contract curve of a) and show that the equation of a) is satisfied