Santino Was Excited to Get His First Credit Card Because

Santino was excited to get his first credit card because he had heard that it's important to develop a good credit history. At first he just used it to buy his textbooks, but before long Santino was using his card for everything. He treated friends to dinner, bought concert tickets, and even used it for groceries. When his first bill came, he barely had enough to make the minimum payment. With all of his spending, his minimum monthly payment has gone up, and he's had to borrow money from his parents. What should Santino do?

A) apply for another credit card and use it to make payments on his original card
B) contact the credit card company and ask them to increase his credit limit
C) stop using his credit card and focus on paying off his balance
D) use his credit card to get a cash advance, and use that money to make payments