Answer : The correct option is, (B)
Explanation :
Lewis-dot structure : It is defined as the it shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.
The given molecule is, carbon tetrabromide [tex](CBr_4)[/tex]
As we know that the carbon has '4' valence electrons, bromine has '7' valence electron.
Therefore, the total number of valence electrons in [tex](CBr_4)[/tex] = 4 + 4(7) = 32
According to Lewis-dot structure, there are 8 number of bonding electrons present between the carbon-bromine and 24 number of non-bonding electrons present on the bromine.
Hence, the correct option is, (B)