In the Processing of Food Through the Digestive Tract,what Is $\rarr$

In the processing of food through the digestive tract,what is the correct order?

A) bolus $\rarr$ feces $\rarr$ chyme
B) bolus $\rarr$ chyme $\rarr$ feces
C) chyme $\rarr$ feces $\rarr$ bolus
D) chyme $\rarr$ bolus $\rarr$ feces
E) feces $\rarr$ bolus $\rarr$ chyme