Using Parabiotic Mice to Investigate Genetic Influences on Obesity,it Was

Multiple Choice

Using parabiotic mice to investigate genetic influences on obesity,it was found that:

A) If db/db mice were paired with normal mice,the normal mice starved.
B) If db/db mice were paired with ob/ob mice,the ob/ob mice starved.
C) Paired ob/ob mice with normal mice slowed the weight gain of ob/ob mice.
D) All of the above are true.