Take a look at the item again:
After Deidre saw the tiny balance on her ATM receipt,
(A) she
realized, (B)
that her meals for the next week would consist of cheap
food, (C)
such as peanut butter sandwiches and instant soup.
You wanted to do this:
After Deidre saw the tiny balance on her ATM receipt.
She realized, that her meals for the next week would consist of cheap
food, such as peanut butter sandwiches and instant soup.
A period after receipt makes a fragment. After Deidre saw ... is a subordinate clause, so it cannot stand alone as a complete sentence.
You might want to review the rules.
Go back to the sentence to try again.