When E Coli Is Grown in Medium Containing Both Glucose and and Lactose

Multiple Choice

When E. coli is grown in medium containing both glucose and lactose, 

A) the cells growth fastest after lactose is used up.
B) the cells use lactose first, then glucose.
C) the cells grow fastest initially when glucose is available.
D) the cells use the glucose and then stop growing.
E) the cells grow at the same rate until all sugars are depleted.