From the sellers perspective, a sale of stock may be preferable to a sale of assets because

a. The purchaser obtains not only all of the assets but all of the liabilities.

b. When product liability or adjustments in prior taxes are unknown, the seller may be required to indemnify the buyer for any undisclosed liabilities.

c. A sale of stock results in only a single tax.

d. Both a and c, but not b.