Based on information from the passage, the reader can assume that 'grist' is a. rabbit. b. pickerel. c. corn meal. d. not edible.

Definition of grist      

1a : grain or a batch of grain for grinding    

b : the product obtained from a grist of grain including the flour or meal and the grain offals      

2 : a required or usual amount      

3 : matter of interest or value forming the basis of a story or analysis      

4 : something turned to advantage or use —used especially in the phrase grist for one's mill  

So your answer would be C, Corn meal

Its C

Explanation:

C;

c. explains words’ origins and variations.