If a Group of Transgenic Mice That Overexpress SIRT1 Was

If a group of transgenic mice that overexpress SIRT1 was fed as much food as the mice desired to eat, what would be the consequences?

A) shortened lifespan with increased incidence of age-related diseases such as diabetes and cardiovascular disease
B) normal lifespan with increased incidence of age-related diseases
C) normal lifespan with no increased incidence of age-related diseases
D) lengthened lifespan with increased incidence of age-related diseases
E) lengthened lifespan with no increased incidence of age-related diseases