Answer:
D
Step-by-step explanation:
The first three sentences make sense following each other. The last one, however, changes from one sentence to another.
It begins as saying "Shelley thought about what to buy."
Then, it goes on to say, "I was out of money and had to call my mom."
Those two ideas are not connected, and the fact that we go from "Shelley" to "I" shows a point of view change.