Which action is the best example of muscular strength

Ryan finds that the crunchiness and flavor varies with each batch of his deep-fried prawn fritters. which aspect of the deep-frying process should ryan monitor and maintain? a. the size of the flame on the burner b. the size of the fryer c. the quantity of oil in the fryer d. the temperature of the oil e. the amount of batter used to coat the fritters