Select all the compositions of rigid motions that can be described as a single translation, rotation, or reflection.
a. rm ⚬ rn
b. t⟨a, b⟩ ⚬ rm
c. t⟨c, d⟩ ⚬ t⟨a, b⟩
d. rm ⚬ t⟨a, b⟩
e. rm ⚬ rn ⚬ rp