Sentence Correction (SC) | Re: Because 70 percent of the people of India use wood as their sole fuel

Experts, could you please explain the official solution a lil more as to why exactly is B incorrect? I was stuck b/w B and D. I just couldn't point to an error in B. 'resulting' is actually modifying the previous whole clause right? Is the 'as much .. as in 1960' not correct in B? Please help. Thanks