What happens next in this paragraph?

A person picks up a cookie and holds it into a glass of milk. They mix ingredients into a large clear bowl. They add chocolate chunks to the dough. they
OPTIONS: A. take them into the oven and dough them up.; B. put the dough into balls on a cookie sheet.; C. then mix egg nogs into the glass of milk and mix a food mix.; D. pour the dough onto a matching cookie.;
B.