Dizygotic twins are:

A identical in genetic make-up, but not identical in appearance.
B. the result of the division of just one fertilized egg
C. no more alike that any other siblings
D. almost mirror images of one another

I choose A is that correct

No, A is not correct.

http://www.medical-dictionary.thefreedictionary.com/dizygotic+twins

A refers to monozygotic twins.

No, A is not correct. Dizygotic twins, also known as fraternal twins, are not identical in genetic makeup. The correct answer is C. Dizygotic twins occur when two separate eggs are fertilized by two separate sperm. As a result, they are no more alike than any other siblings in terms of genetic makeup.