select all statements that are true of polynomial

5a2b-6ab3c+3a5 is a fifth degree polynamious
5a2b-6ab3c+3a5 has a leading term of 5
5a2b-6ab3c+3a5 contais three terms
-10x5-73x4 is equivalent to 10x5+3x4+12x-7
12x-10x5-73x4 has a leading term of -10x5
12x-10x5-73x4 has a leading coefficient of 12

The true statements about the polynomial 5a2b-6ab3c+3a5 are:

- 5a2b-6ab3c+3a5 is a fifth degree polynomial.
- 5a2b-6ab3c+3a5 has a leading term of 5.
- 5a2b-6ab3c+3a5 contains three terms.