Final answer:
Mikhail Gorbachev refers to the new principles of freedom of choice as Human Rights in his Christmas address to the people of the USSR. This speech is about the reforms implemented by Gorbachev, such as perestroika and glasnost, to modernize the Soviet system.
Step-by-step explanation:
In his Christmas address to the people of the USSR, Mikhail Gorbachev talks about universal principles such as freedom of choice as now being important everywhere, including in the Soviet Union. Gorbachev refers to these new principles as Human Rights. He implemented reforms like perestroika and glasnost to modernize the Soviet system and introduced political openness and economic restructuring.