Final answer:
Under the CRA, depreciation, referred to as Capital Cost Allowance, is a mandatory consideration when calculating profit for tax purposes, making the statement that depreciation expense is not optional in calculating profit true.
Step-by-step explanation:
Under the CRA (Canada Revenue Agency), the concept of depreciation, which is often referred to as Capital Cost Allowance (CCA), is not an optional deduction when it comes to calculating profit for tax purposes. Businesses must account for the depreciation of their capital assets over time according to the rules set by the CRA. This ensures that the profit reported is a true reflection of the economic reality, considering the wear and tear or obsolescence of the business's assets. Hence, the statement that depreciation expense is NOT optional in calculating profit is True.