For the Expression,
A) Determine the Number of Terms;
B) $$3 \left( 9 x ^ { 2 } - x \right) + 6 x ^ { 2 } + x$$

Multiple Choice

For the expression,
a) determine the number of terms;
b) write down each term; and
c) write down the coefficient for each.
Be sure to simplify the expression before answering.
- $$3 \left( 9 x ^ { 2 } - x \right) + 6 x ^ { 2 } + x$$

A) a) 2
b) $- 21 x ^ { 2 } , - 2 x$
c) $- 21 , - 2$

B) a) 2
b) $15 x ^ { 2 } , - 2 x$
c) $15 , - 2$

C) a) 1
b) $33 x ^ { 2 }$
c) 33

D) a) 2
b) $33 x ^ { 2 } , - 2 x$
c) $33 , - 2$