Which of the following is NOT a component of a credit score?

A credit score is calculated based on several factors that reflect a borrower's creditworthiness. One key component of a credit score is payment history, which assesses whether a borrower has paid their bills on time. Another important factor is credit utilization, which measures the ratio of current credit card balances to their credit limits; this reflects how responsibly a borrower is using available credit. Additionally, the types of credit used, such as installment loans and revolving accounts, play a role in demonstrating a borrower's credit management.

Income level, however, is not a component of a credit score. While income can influence a lender's decision in assessing credit applications, it does not factor into the calculation of the credit score itself. This distinction is essential for understanding how financial institutions evaluate creditworthiness and the specific elements that contribute to a credit score. Thus, the answer identifying income level as not being a component of a credit score is accurate.