Which of the following transactions take place in the primary markets?

1. DoorDash sells 33 million shares, raising $3.37 billion in its IPO

2. First Horizon repurchases $500 million of its common stock

3. Auburn University issues $220 million of revenue bonds for the purpose of financing University capital improvements on Auburn's main campus

4. Zoom sells 4.4 million shares in a seasoned equity offering to raise $billion

5. The US Treasury sells $4.5 billion of pew T-bills through a T-bill auction.

A. 1,3, 4

B. 1,2, 5

C. 1,3,4,5

D. 1,2,3,4

E. 1,2,3,4,5