CR Challenger 21/02

Terry, a high-school senior from State A, is interested in attending Fullem State College next year. Terry’s parents discovered that Fullem State College, which is located in State B, offered residents of State B a substantial discount from its out-of-state tuition cost. Therefore, Terry's parents decided to move the family to State B.
Which of the following, if true, would be the best reason for Terry's parents to reconsider their decision?
a. Most scholarships are given to applicants who establish financial need.
b. To qualify for the lower tuition, applicants must prove that they have lived in State B for at least three years.
c. There are many colleges in State A that offer tuition discounts.
d. State B is several hundred miles from State A, and moving there would be difficult.
e, Regular tuition at Fullem State College is lower than that of most state colleges.
Answers and explanation in comments