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.

D. Every four years the American people choose a new president, and 1988 is one of those years.

Explanation:

Option D is a fact. A fact is something that has been proven or can be proven to be true. In this sentence, the Reagan is stating the fact that American's choose a new president every four years. This is true and the law according to the Constitution. Also true is the fact that 1988 was an election year. The other options are all opinions. Democracy is not technically a unit or standard of measurement that is used. Free markets are not actually a model for growth; people feel as though they should be and some do use them as a model. It's also a personal opinion that freedom is key.