Which sentence uses an objective tone and formal language? A)The research revealed that cats, on average, sleep 50% more in a 24-hour period than dogs. B)Our research revealed that cats have the best life because they get to sleep most of the day. C)We believe that even though dogs do not sleep as much as cats, they still sleep a good portion of the day. D)While our research didn't prove this, we believe that dogs eat, on average, more than cats during a typical day.