Which Statement Best Describes the Earliest Uses of Nitrous Oxide

Multiple Choice

Which statement best describes the earliest uses of nitrous oxide following its discovery by Sir Humphrey Davy?

A) It was first used as a rather ineffective anesthetic.
B) It was first used as a very effective anesthetic.
C) It was first used for recreational purposes in isolation.
D) It was first used for recreational purposes at social gatherings.