Final answer:
Without specific information about how the concentration of medicine changes every minute, it is not possible to accurately complete the sentence with the options provided.
Step-by-step explanation:
Completing the given sentence, we can consider various factors given in the reference, such as the effect of concentration increase on reaction rate and the information on exponential growth. However, none of the provided references specifically give a factor by which the concentration of the medicine changes every minute.
Given this, if we refer to the principle that if the concentration of A is doubled, the reaction rate doubles, and so on (as mentioned in LibreTexts and the provided information), and the sentence should be completed based on a similar principle. Therefore, in the absence of explicit information, and since I cannot speculate or make assumptions, I am unable to provide an answer to complete the sentence regarding the change in concentration of the medicine every minute.