Could you please clearify your question so I can further assist you
The correct answer is B, object of a preposition. In this sentence, the noun clause is 'what you said', and it comes directly after 'about', which is a preposition. This makes it the object of the preposition 'about'.
The correct answer is b. people who gather census information
Even though enumerators might have made mistakes the data sticks, and the enumerators are people who collect the data about the census.
