Which of the Following Statements Accurately Describes the "Browning" of White

Which of the following statements accurately describes the "browning" of white fat cells? 

A)  White fat cells undergo browning when they take on the activity of coupled proteins. 
B)  White fat cells with brown fat cell characteristics sometimes are called beige adipocytes. 
C)  Brown fat cells are more abundant than brite fat cells in adults. 
D)  Interestingly, physical activity stops the browning process. 
E)  After much study, researchers have found little connection between GI microbiota and the browning process.