The star can no longer support nuclear fusion because it has exhausted its supply of hydrogen is the sun, therefore the correct answer is the option B
What is nuclear fusion?
A reaction known as nuclear fusion occurs when two or more atomic nuclei combine to create new atomic and subatomic particles (neutrons or protons). Energy is released or absorbed depending on how much mass there is between the reactants and products. The difference in nuclear binding energy between the atomic nuclei before and after the reaction is what causes this mass difference. Large amounts of energy are released during nuclear fusion, which powers active stars, main sequence stars, and other high-magnitude stars.
Nucleosynthesis, a process that powers stars, creates almost all elements. As a main-sequence star, the Sun produces its energy through the nuclear fusion of hydrogen atoms into helium.
In stars, lighter elements are fused to release energy along with the mass that is always present. For instance, 0.645% of the mass is lost during the fusion of two hydrogen atoms to create helium in the form of electromagnetic radiation or the kinetic energy of an alpha particle.
Thus , The sun is the star that can no longer support nuclear fusion because it has used up all of its hydrogens, so option B is the correct answer.
Learn more about nuclear fusion from here
https://brainly.com/question/12701636
#SPJ2
