What is the control requirement of § 351? Describe the effect of the following in satisfying this requirement:
1. A shareholder renders only services to the corporation for stock.
2. A shareholder renders services and transfers property to the corporation for stock.
3. A shareholder has only momentary control after the transfer.
4. A long period of time elapses between the transfers of property by different shareholders.
Required: one page only with 2 references.