Think about agriculture research which of the following statements is accurate?

a. genetic modification of food it grow more easily in certain areas

b. farmable land has increased as industry and residential development have increased

c. not rotating crops prevents environmental damage and compromises soil.

d. fertilizers and pesticides have made food production more difficult.

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.