The answer to this brainstorming question is c
<span>C. None but the brave shall enter in.
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Here but is not a conjunction but a preposition itself.
<span>Preposition is a part of speech where the word in a sentence describes the position of the subject or the word being illustrated.</span>
"<span>C. "I won't forget to feed the dog," Helen promised" is free from capitalization errors. Sentences (even if they're direct quotations from a character) need to begin with a capital letter. </span>