Corp A wishes to acquire the business of Corp T. Corp T stock is worth $650 million, and its shareholders cumulatively have a tax basis of $300 million in the Corp T shares. Corp T has no debt, very little cash, and assets with a cumulative tax basis of $100 million. Assume the Corp T shareholders don't want to pay tax on their gain. Which transactions are available in the following scenarios?

 a. Corp A is willing to use only its voting stock to acquire Corp T.

 b. Corp A wants to use its stock to acquire only 80% of Corp T, and pay cash for the rest, and it needs Corp T to continue in existence (due to valuable licenses Corp T holds)

c. Corp A wants to acquire the assets of Corp T for itself and have Corp T go out of existence.

d.Corp A wants one of its subsidiaries to acquire the assets of Corp T.