How can studying the actions of mind-controlling parasites scientists better understand the human brain?

Which two phrases in this information about medicare prescription drug coverage are noun phrases

Which line from president reagan’s address sat moscow state university is a fact? a. democracy is the standard by which governments are measured. b. throughout the world, free markets are the model for growth. c. the key is freedom-freedom of thought, freedom of information, freedom of communication. d. every four years the american people choose a new president, and 1988 is one of those years.

Based on the dialect in the passage what can you infer about the character huckleberry finn