Please help, Which statements about the graph are true? Choose all the true statements.
 A.) The friends stopped for a break between hours 3 and 4.
 B.) The friends hiked at a constant speed for the first 2 hours.
 C.) The friends hiked at the maximum speed for 7 and 8.
 D.) The friends hiked the least number of miles between hours 6 and 7. 
 E.) The friends hiked back toward the starting point between hours 3 and 4.