Expense reimbursements are:

An expense reimbursement is paid to repay an employee for actual business expenses the employee incurred while performing their job (for example, meals while travelling on business, supplies purchased for work, etc.). CRA’s taxable benefits guidance distinguishes reimbursements from allowances: an allowance is usually a predetermined amount paid without the employee having to support the expense with receipts, while a reimbursement is tied to actual costs.

That distinction matters because reimbursements are generally not compensation for work performed (so they are not “earnings”), and they are not “benefits” in the sense of a good or service provided by the employer (though CRA notes that benefits can include reimbursements of personal expenses—so payroll must still ensure the reimbursement is for business use and properly supported).

Option A correctly describes reimbursements. Option B is typically an allowance (for example, a vehicle allowance for using personal property). Option C describes earnings (wages/salary). Option D describes benefits (value of something provided or paid for on the employee’s behalf).