Which One of the Following Actions Will Tend to Increase

Which one of the following actions will tend to increase the accounts receivable period?

A) Increasing the finance charges applied to all customer balances outstanding over 30 days
B) Increasing the discount for early payment by credit customers
C) Granting discounts for cash sales
D) Loosening the standards for granting credit to customers
E) Refusing credit to all existing and future customers