QUESTION $4$

Simba has a fixed income and faces the follou the marginal rate of substitution $($MRS$)$ betwee interpretations is correct for Simba's preference

a$)$ Simba is willing to give up $7Y$ for $2x$ to main

b$)$ Simba is willing to give up $2Y$ for $7x$ to main

c$)$ Simba is willing to give up $7x$ for $7x$ to maint

d$)$ Simba is willing to give up $7$ X for $1Y$ to maintq