Question

question 3
a star on the instability strip can also be called a...
brown dwarf.
red supergiant.
variable star, such as a cepheid.
t tauri star.

Explanation:

Stars on the instability strip have varying luminosities and are known as variable stars. Cepheids are a well - known type of variable star found in this region. Brown dwarfs are sub - stellar objects, red supergiants are large and luminous but not specifically associated with the instability strip, and T Tauri stars are young stars with different characteristics.

Answer:

C. variable star, such as a Cepheid.