The correct answer is: (A) Both (A) and (R) are correct.
Marginal costing is a cost accounting method that focuses on the costs that change in response to changes in production volume. The marginal cost of a product is the additional cost incurred to produce one more unit of that product. The purchase price is the price that a company pays to acquire a product from another company.
If the marginal cost of a product is less than the purchase price, then the company should purchase the product rather than manufacture it. This is because the company will save money by purchasing the product rather than manufacturing it.
The following is a brief explanation of each option:
- Option A: Both (A) and (R) are correct. This is the correct answer because marginal costing focuses on the costs that change in response to changes in production volume, and the purchase price is the price that a company pays to acquire a product from another company. If the marginal cost of a product is less than the purchase price, then the company should purchase the product rather than manufacture it.
- Option B: (A) is correct, but (R) is not correct. This is not the correct answer because (R) is correct. If the marginal cost of a product is less than the purchase price, then the company should purchase the product rather than manufacture it.
- Option C: (A) is not correct, but (R) is correct. This is not the correct answer because (A) is correct. Marginal costing focuses on the costs that change in response to changes in production volume.
- Option D: Both (A) and (R) are incorrect. This is not the correct answer because both (A) and (R) are correct.