i really dont understand this math the help is appreciated. what is the product?

Answer:
C. [-2, 0]
Step-by-step explanation:
When you're multiplying a negative number (-) by a positive number (+), the product/total comes out as a negative answer.
So 2 · -1 = -2
Anything number that is multiplied by 0, becomes 0. For example:
12345 · 0 = 0
So, 2 · 0 = 0