Concept:Accounts are either personal accounts or impersonal accounts.
Impersonal accounts include real accounts (assets) and nominal accounts (expenses/incomes).
Explanation:Creditors and Debtors are personal accounts because they relate to persons or firms.
Investment and Premises are real accounts because they are assets.
Salaries is a nominal account because it is an expense.
Real and nominal accounts are impersonal accounts.
So, Investment, Premises, and Salaries are impersonal accounts.
Answer:I, III and V — Option B.