Undigested food or old cell particles can be eliminated from the cell by: *

lysosomes
The lysosomes play an important role in removing the garbage, byproducts and old cellular material out of the cell by digesting them. Even the undigested food particles are digested by the lysosome and are removed out of the cell.

(hope this helped. have a nice day.)

Ithink option a is correct because you cannot donate a different blood group than yours because it won't match.option a says betsy can donate to mark. they have the same blood group so donation can happen.