A borrower consistently making late payments, keeping a high balance on credit cards, and applying for many different credit cards can have a negative impact on their credit score. Therefore, the correct answer is A) I, III, IV.
On the other hand, having a long credit history with a specific card (II) can have a positive impact on the credit score, while it is important to keep in mind that this is just one factor among many that can affect a credit score.



