Based on the thesaurus entry and how the word is used in the paragraph, which word is the closest meaning for divide and why is that meaning the best choice?

Grandma makes the best tasting pumpkin pie from scratch. She made a big pie for Thanksgiving. I was so full after dinner that I didn’t have any pie and neither did my sister Jessie. When I was finally hungry for pie, there was only one piece of Grandma’s pumpkin pie left in the pan. Jessie and I both wanted it, and to keep the peace between us, my mother decided to divide the last piece. That way, Jessie and I both got a small sliver of Grandma’s pumpkin pie.

Read the thesaurus entry.

divide, v. break, part, separate, split

A break

It tells how the pie was broken in two.

B part

It explains the size of the piece of pie the speaker got.

C separate

It tells how the speaker didn't have a piece of pie with dinner.

D split

It explains how the mother cut the last piece of pie.