Answer :
the quote " Whoso is a man must be a nonconformist" comes from the work "Self-Reliance and other Essays" of Ralph Waldo Emerson, so the first option is the right answer.
Ralph Waldo Emerson
The quote "Whoso is a man must be a nonconformist" is from Emerson's "Self-Reliance".
Emerson's essay "Self-Reliance" was published in 1842 and argued the benefits of self-reliance as a trait. He argued people should develop self-reliance and compared it to forms of conformity.