If a person has a business and has borrowed money from a bank. In doing their book, how would they classify that transaction account. Would it be a debit, credit account or both

The journal entry would be something like this:
Debit: Cash
Credit: Loans Payable

This is the way to remember for all time :-

All expenses and assets are DEBITS
All incomes and liabilities and equity are CREDITS.

E + A = I + L + EQUITY

Borrowing money from the Bank is a Liability.
Now you should know the answer from above.