A. IS INCORECT because it needs to be changed to AFFECT.
B. IS INCORECT because it also needs to be AFFECT.
<u>C. IS CORRECT</u> because it properly uses EFFECT in a scentence.
D. IS INCORECT because it needs to be changed to AFFECT.
Most of the time, you'll want affect as a verb meaning to influence something and effect for the something that was influenced. The difference between affect and effect is so slippery that people have started using "impact" as a verb instead. Don't be one of them! -coppied from google if you choose to use this please dont copy it word for word! thanks