Answer:
B, C, and E
Explanation:
A. A constant term is defined as a term without a variable, so this answer is wrong
B. 6 and 1 are both like terms, so B is correct
C. A coefficient is defined as a number multiplied by the variable, C is correct.
D. There are two terms, not 3
E. 8 is being multiplied so it is a factor, E is correct
F. 3 has been proven to be correct so F is wrong.