For 2x5 −5x3 + 12 = 0, state the number of complex roots, the possible number of real roots, and the possible rational roots.

- 2 complex roots; 1, 3, or 5 real roots
possible rational roots: ±1 over 2, ±1, ±2, ±3 over 2, ±3, ±4, ±6, ±12
- 1 complex root; 1, 3, or 5 real roots
possible rational roots: ±1 over 2, ±1, ±2, ±3 over 2, ±3, ±4, ±6, ±12
- 3 complex roots; 1, 3, or 5 real roots
possible rational roots: ±1 over 2, ±1, ±2, ±3 over 2, ±3, ±4, ±6, ±12
- 5 complex roots; 1, 3, or 5 real roots
possible rational roots: ±1 over 2, ±1, ±2, ±3 over 2, ±3, ±4, ±6, ±12