According to the Pythagorean identities, sin² t+cos² t=____, 1 + tan² t =______, and 1 + cot² t =____ₐ. 1, sec² t, csc² t
b. 1, csc² t, csc² t
c. sec² t, 1, csc² t
d. csc² t, sec² t, 1