Answer: e. Decreases asset and expense accounts, and increases liability, common stock, and revenue accounts.
Explanation:
Let's evaluate each of the options as follows:
a. Is always a decrease in an account - This is false because a credit entry increases liability, common stock and revenue accounts.
b. Is recorded on the left side of a T-account - Although in modern day accounting, the use of T-account has been relegated to the background. However, if entries are to be recorded using the T-account, all debits are posted to the left side while all credits are recorded on the right side of the account.
c. Increases asset and expense accounts, and decreases liability, common stock, and revenue accounts - It does not increase asset and expense accounts, rather it reduces them. The opposite applies to liability, common stock, and revenue accounts.
d. Is always an increase in an account - This is false.
Therefore, option e is correct because a credit entry reduces asset and expense accounts, and increases liability, common stock and revenue accounts.