Answer:
D. Her score will go down at first, but the on time payments will slowly raise it back up again.
Explanation:
This is most likely what will happen to Kate due to the missed payment. When you miss a payment on something like a loan, your credit score goes down. This is because your reliability as a payer decreases. However, this impact can be mitigated if your successive payments are on time. These other payments will slowly raise your score again.