The ABCDE partnership had the following occur:

11/30/2014 A died and left her 20% interest to G.

1/1/2015 B gave his interest to H. The partnership does not have any debt.

3/1/2015 C contributed her 20% interest to the C corporation in a tax-free exchange.

6/1/2015 D sold his 20% interest to E.

12/31/2015 A new partner, F, was allowed into the partnership with a 1/6 interest in capital and profits.

Which of these constitutes a sale or exchange of a partnership interest under Code Section 708, and is there an actual termination of the partnership for tax purposes?