Respuesta :

 A system of two stars that revolve about their common center of mass(binary Star),  A) Algol, Algol-type binaries are a class of eclipsing binary stars

Answer:c]Alpha Centauri

Explanation:

The Alpha Centauri can be defined as the binary star as it appears in pair. The two main stars in the pair are Alpha Centauri A and Alpha Centauri B which forms a binary pair. They are distant 4.3 light years from Earth.