which term defines a star system with two stars?\n○ binary star system\n○ eclipse star system\n○ open…

Brief Explanations:

A binary star system consists of two stars that orbit a common center of mass. Eclipse star systems refer to stars that eclipse each other during their orbits but are not defined solely by having two stars. Open - cluster and globular - cluster star systems contain many stars.

Answer:

A. binary star system