Answer:
The answer is C): The consumption of dairy products contributes to a surprising number of health problems.
Step-by-step explanation:
Option C (The consumption of dairy products contributes to a surprising number of health problems) represents the conclusion of the argument: what can be inferred from the passage is that the past assumption that milk consumption was healthy, was a wrong one because there seems to be strong evidence showing that consumption of dairy products has always contributed/still contributes to a surprising number of health problems.