I would say the first sentence is grammatically correct
Answer:
C
Explanation:
Answer choice A and D do not bring the plot forward, but rather bring it back to a flashback or thinking, so these choices are incorrect. Answer B completely skips from the narrator being in the kitchen with her mom to being there, with no bridge of action. Answer C, however, gives a sentence where the narrator completes an action that propels the plot forward; finishes her breakfast and leaves.