Which of the following students is demonstrating high utility value?
a. Gale enrolls in an advanced Chemistry course because she finds the subject fascinating.
b. Doug signs up to give the first presentation in his Social Studies class because he expects to do well.
c. Marcus begins a recycling club at his school, because he cares about environmentalism.
d. Shannon spends most Saturdays in a test prep course to prepare for college entrance exams.
