Final answer:
The practice that results in lower interest charges to the cardholder is when the credit card company allows a grace period before interest is accrued.
Step-by-step explanation:
The practice by a credit card company that results in lower interest charges to the cardholder is option B) The card company allows a grace period before interest is accrued. A grace period is a period of time after the billing cycle where the cardholder can pay off the balance in full without incurring any interest charges. By allowing a grace period, the card company gives the cardholder an opportunity to avoid paying interest on their purchases if they pay the balance in full within the specified period.