Life Cycle of a Star for medium mass stars

A star's life cycle is determined by its mass. The larger the mass, the shorter the life cycle. It is now called a main sequence star and will remain in this stage, shining for millions or billions of years to come. As the main sequence star glows, hydrogen in the core is converted into helium by nuclear fusion.

A,b,c is the answer to the question

Answer the above statement is correct (true);