The answer is C.
Starting from the left and going to the right, you would do this.
Multiply -2 and 3.
That would equal -6.
Then multiply -6 and 4.
You will end up with -24.
Finally, multiply -24 and 5.
You will get -120.
Here is the multiplication rules
- × -= +
- × += -
+ × += +
-=negative
+=positive