The answer is A verb was is a helping verb
I will try to help what’s the sentence? And what do I need to diagram?
The white man takes the ideas of the black man. The black man was way more intelligent or smarter than the white man but there is no reasonable explanation of where the white man came from.
the appropriate arrangement and logical coherence of words in a sentence
Syntax is the arrangement of words, clauses, and phrases in a sentence