Encapsulation data abstraction
inheritance
derived class
defines a class in terms of another class
inherits the properties of a base class
provides only essential information to the word
binds data and functions together

2pointswho was mikhail gorbachev? oa. a russian leader who opposed a coupob. a polish leader who founded the labor union "solidarityoc. a soviet leader who called for a closer relationship with the unitedstates, economic reform, and a more open societyd. a soviet leader who called for more oppression in the soviet union