Please help, the answer is c right!

Answer:
the answer is "D"
Step-by-step explanation:
at first, you should put the number in: 1/2(18+14)-(18-14)^2
then simplify: 1/2*32-4^2
16-16=0
now you can chose "D"
thanks for asking! hope it'll help!
no D. 0 because 18+16 is 32 and 18-14 is 4 then square it which is 16 so 1/2 × 32 is 16 then 16 - 16 is 0