On average, these footprints are 14 to 18 inches long, 5 to 9 inches wide and much larger than _______ of a human.

A. that                B. it                    C. those              D. one

On average, the footprints discovered are 14 to 18 inches long, 5-9 inches wide and much larger than _____ of a human.

On average, 50 percent of those _____ said they would prefer to see Mr. Obama win the 2012 ticket, _____to just nine percent who prefer Mr. Romney.

A. to be questioned; compared

B. having questioned; comparing

C. questioned; compared

D. questioning; comparing

 On average, these footprints are 14 to 18 inches long, 5 to 9 inches wide and much larger than _______ of a human.

On average, the footprints discovered are 14 to 18 inches long, 5-9 inches wide and much larger than _____ of a human.

   A. that          B. ones        C. those           D. one