Which situation can be represented by the equation y = x + 15?

Responses
A Vince spent x dollars to buy a gift for his brother. He gave the cashier y dollars and received $15 in change.Vince spent x dollars to buy a gift for his brother. He gave the cashier y dollars and received $15 in change.
B Vince is y years old. His age is 15 years greater than x, his brother's age in years.Vince is y years old. His age is 15 years greater than x, his brother's age in years.
C Vince has y dollars. This amount is 15 times x, the amount of money in dollars Vince's brother has.Vince has y dollars. This amount is 15 times x, the amount of money in dollars Vince's brother has.
D Vince went to school for x years. This is 15 times y, the number of years his brother went to school.Vince went to school for x years. This is 15 times y, the number of years his brother went to school.

A Vince spent x dollars to buy a gift for his brother. He gave the cashier y dollars and received $15 in change.