Multi-choice problem: Continue writing the next sentence in this paragraph:

How to flatten chicken
Cut thick chicken breasts.
If you are working with especially thick breasts, it will make your job easier if you cut them before flattening them. Using a sharp knife, cut them horizontally.

Pick your answer from:
[a]. They will need a lot of room and will get tough very quickly. If you are working with larger breasts, the chicken breasts may take longer to flatten..
[b]. You can cut it all the way through, leaving you with two separate pieces, or you can cut it almost all the way through and then open it like a book. Place the thawed chicken breast between wax paper or plastic wrap..
[c]. Leave the outer edge at about an inch off. You should also cut the breast apart using a melon baller..
[d]. Make sure that you don't cut through the extra skin on the breast. The breasts should be approximately one inch thick..
[b].