Answer:
e. glycogensis
Step-by-step explanation:
Since in the question it is mentioned that Mark had a bad case with diarrhea due to which he is not able to eat much and his body also starts consuming energy sources by not considering the carbohydrates
This would result in rise level of urea, ketosis and decline in blood, gluconeogenesis in the liver is also increased, and there is a lipid metabolism
but there is the absence of glycogenesis
hence, the e option is correct