Which of these statements is not true?

when an introductory word of a noun clause is not a part of the clause, it is treated like a conjunction.

noun clauses are diagrammed depending on how they are used in the sentence.

when an introductory word of a noun clause is not part of a clause, it can be treated like an interjection.

when an introductory word of a noun clause is not part of the clause, it can be treated like an expletive.

A: When an introductory word of a noun clause is not a part of the clause, it is treated like a conjunction.

Explanation:

 Conjunctions are linking words that have the function of connecting words, phrases, and clauses in a sentence and therefore the option A presents a statement that is not true. The introductory words that are not part of the clause are followed by a comma, and it can stand on their own, which is the case of adverbs or words, such:  yes, well, no etc

i could of w this question but i don't see a " passage " .

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sorry ! ):

comfort   in their suffering