I go to a small liberal arts university that only offers certain math classes at certain times. Due to the way my schedule has worked out, I only have the option of taking ONE of the following: geometry, DEs, or DG. What should I do? By the time I HAVE to chose, I will have taken the calculus series (three semesters, including multivariable), introduction to proofs, and linear algebra (and introductory physics as well). I am leaning towards DEs but I am not completely sure.