Cost of abnormal wastage is:

The correct answer is: A. Charged to the product cost

Abnormal wastage is a type of loss that is not expected to occur in the normal course of business. It is caused by unusual circumstances, such as a natural disaster or a machine breakdown. The cost of abnormal wastage is charged to the product cost because it is a direct cost of production.

The other options are incorrect because:

• Option B: The cost of abnormal wastage is not a normal cost of doing business, so it is not charged to the profit and loss account.
• Option C: The cost of abnormal wastage is not a direct cost of production, so it is not charged partly to the product and partly to the profit and loss account.
• Option D: The cost of abnormal wastage is a real cost that has been incurred, so it is not not charged at all.