which of these would improve a person's credit score?

A. having many small loans
B. paying off a significant
C. making several late payments
D. keeping the same job for many years

B. paying off a significant loan

Paying off a significant loan can help improve a person's credit score by reducing their overall debt and demonstrating their ability to manage their finances responsibly. This can show lenders that they are less of a credit risk and may result in a higher credit score.