Consider the Same Setup with the Curved Final Exam as in the Previous

Multiple Choice

Consider the same setup with the curved final exam as in the previous question.Now suppose the students move sequentially.Which best describes the outcome in the subgame-perfect equilibrium?

A) Brainiacs study and Numbskulls party regardless of who moves first.
B) Brainiacs party and Numbskulls study regardless of who moves first.
C) The party moving first studies.
D) The party moving first parties.