For the multiple regression model Y = 40,000 + 15,000X₁ + 2,000X₂ , whereYis future income,X₁is a dummy variable representing whether or not both parents attended college (if yes, it takes the value of 1, and 0 if not), andX₂represents years of secondary schooling of the individual.

What is the expected income of an individual whose mother, but not father, attended college, and who themselves have 5 years of secondary schooling?

a) 50,000

b) 70,000

c) 65,000

d) Cannot be determined.