Suppose That Over a 12-Month Period,Sonali's Income (Y)rises from $27

Multiple Choice

Suppose that over a 12-month period,Sonali's income (Y) rises from $27 000 to $35 000 per year and,as a result,her spending on travel (T) increases from $1500 to $2500 per year.Assume there is a linear relation between the two variables,Y and T.What is the marginal response in T to a change in Y?

A) 8
B) 4
C) 0
D) 0.25
E) 0.125