One spinner has three equally sized sectors labeled R, S, and T. A second spinner has two equally sized sectors labeled 3 and 5. Each spinner is spun once. What is the sample space of outcomes?

A. {R, S, T, 3, 5}

B. {R3, R5, S3, S5, T3, T5}

C. {RR, RS, RT, SR, SS, ST, TR, TS, TT, 33, 35, 53, 55}

D. {RST, 35}