Which of the following sentences
 correctly uses the 
 verb "read" as a
 gerund?
 A. Would you like to read this book when I'm through with
 it?
 B. Reading is Heather's favorite hobby.
 C. Laura made sure that when her students were reading,
 they were also paying attention to details.
 D. There are many reasons why the elderly should read to
 keep their memories fresh.
 Gt