Answer : B
Explanation
Our Solar system is the ONLY solar system. Everything else is a stellar system or star system. Sol is the name of our sun (also called Helios), so solar comes from its proper name.
Our Solar system is the ONLY solar system. Everything else is a stellar system or star system. Sol is the name of our sun (also called Helios), so solar comes from its proper name.
The first woman to travel into space was a Soviet cosmonaut named Valentina Tereshkova.