Answer:
Yes it is the common noun.
The simple predicate is "did not know that"
The correct answer to this open question s the following.
Although there are no options attached, we can say the following.
Martin Luther King III set important goals. His goals were the same as those of his parents, Martin Luther King, Jr., and Coretta Scott King in that he stills wants to be an African American civil rights activist who fights for minorities in America.
The goals are different in that Martin Luther King III did not mobilize people to take the streets as his father did or organized the massive events of the civil rights movement in the 1950s-the 1960s because these are different times with different contexts and legislation that had permitted a different atmosphere compared with what Martin Luther King Jr. lived in the 1960s.
Notwithstanding the different ties and circumstances, racial issues in America still persists. King III was the President of the Southern Christian Leadership Conference (1997-2004), where he tried to continue the legacy of his father.
Syntax and diction involve B. word order and choice.
Both syntax and diction are essential to the formation of sentences.
Syntax refers to the arrangement of words.
Diction refers to the choice of words used by a writer in a sentence.
