Iseriously need i’ve been stuck on this problem for awhile! i’m torn between a, b, & ! apex

Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?

How are elements arranged in a periodic table

How does a scientist the government? a. the scientist tells people in society what to do. b. the scientist determines the policies that the government spends money on. c. the scientist provides unbiased information to the government. d. the scientist makes laws based on his or her research results.