Linking credit or debit with normal balance

Indicate whether a debit or credit is necessary to decrease the normal balance of each of the following accounts:

A. buildings

b. interest income

c. bob norton, withdrawals

d. bob norton, capitals

e. Prepaid insurance

f. Interest payable

g. accounts receiable

h. salaries expense

i. office supplies

j. repair service revenue

k. intrest expense

l .unearned revenue

m. Salaries poayable

n. furniture

o. Interest receivable