Answer:
option b, How elements are joined in the compound
Explanation:
Chemical formula represents the elements present in the compound with their relative proportions.
For example, chemical formula of methane is [tex]CH_4[/tex]. The chemical formula of methane indicates that the compound is made of C ahd H.
C and H in methane are present in 1:4 ratio. But it does not indicate the nature of bond present between C and H.
Thus, option c is correct