Question

What is a carbon star?

• A. a red giant star whose atmosphere becomes carbon-rich through convection from the core
• B. a star that fuses carbon in its core
• C. another name for a white dwarf, a remnant of a star made mainly of carbon
• D. a star that is made at least 50 percent of carbon

Answer 1

The correct option is A a red giant star whose atmosphere becomes carbon-rich through convection from the core

Due to triple helium process, helium fusion takes place and carbon is formed due to convection from the core