It can be shown that {e^t,te^t} is a fundamental set of solutions of y′′−2y′+y=0
Determine which of the following is also a fundamental set.
A. {−te^t, 5te^t}
B. {te^t, t^2e^t}
C. {e^t+te^t, e^t}
D. {5e^t, 2te^t}
E. {e^t−te^t, e^t+te^t}
F. {e^t−te^t, −et+te^t}
Multiple options can be selected.