Answer:
The accounts that have normal debit balances are:
a. Cash
d. Equipment
In accounting, normal balances are the side of the account which increases the balance. Cash is an asset account, and since assets have debit balances, any increase in cash is recorded on the debit side. Equipment is also an asset account, so any increase in equipment is recorded on the debit side.
b. Stock accounts (presumably referring to stockholders' equity accounts) and c. Payable supplies are not normally accounts. Instead, they are typically reported under other specific accounts. For example, stockholders' equity accounts like Common Stock and Retained Earnings would have a normal credit balance, and accounts related to payable supplies would typically be recorded under an expense account with a normal debit balance.