3. Given below are four sentences. While three of them are correct, one is not acceptable in formal English as it is grammatically incorrect. Spot that sentence.
A. Yet in those same ten years the public has been buying science books like never before.
B. Although figures on this are hard to come by, publishers, scientists and writers all attest to it.
C. The publics appetite has been fed by a big rise in new books by scientists themselves, explaining the most tortuous theories with elegance and wit.
D. Most of scientists say that one of their aims is to combat ignorance about science.