Which sentence below is properly punctuated?

APlease, Sasha, come home, as soon as you can.
BI need sugar, butter, and eggs, from the grocery store.
CWe will grant you immunity if you decide to cooperate with us.

Verified Answer :

The correct answer is c. We will grant you immunity if you decide to cooperate with us.

In A there mustn't be a comma after home, and there mustn't be one between eggs and from.

The correct answer is C.  We will grant you immunity if you decide to cooperate with us.