Which of the following represents how well one manages their credit through a number?

The correct choice is C, Credit Score, which quantifies an individual's creditworthiness based on their credit history. A credit score is typically a three-digit number, ranging from 300 to 850, which financial institutions use to evaluate the likelihood of a borrower repaying a loan. This score takes into account various factors, including payment history, amounts owed, length of credit history, new credit, and types of credit used.

While Credit Evaluation refers to the overall process of assessing an individual's credit merits, it does not provide a numerical measurement. Credit Rating, although somewhat synonymous with a credit score in terms of conveying creditworthiness, often is used more in the context of businesses or government bonds rather than individual consumer credit. Payment Index, on the other hand, is not a standard term commonly associated with credit management. Thus, the credit score is the most accurate representation of managing credit through a numerical value.