Which of the following statements are true about Negative Capability?

A. The term was introduced by John Keats.

B. Keats first introduced this term in a letter written in 1817.

C. Instead of dealing with a text in isolation from its historical contexts, it primarily attended to the historical and cultural conditions.

D. It was used to define a literary quality "which Shakespeare possessed so enormously, that is, when man is capable of being in uncertainties, doubts, without any irritable reaching after fact and reason."

E. Negative capability is the close analysis or reading of particular literary texts. 

Choose the correct answer from the options given below: