What is a credit mix, and how does having both revolving and installment accounts influence credit scores?

• A. Credit mix is the variety of credit types; a healthy mix can help scores by showing borrowing versatility, but it's less influential than payment history.
• B. Credit mix refers to the balance between revolving and installment accounts, which always dramatically changes your score.
• C. Credit mix refers to the total number of tradelines opened in the last year.
• D. Credit mix does not affect credit scores at all.

Answer: (A)