Answer: I think it is
d)preventative care and treatment of routine aliments
Explanation:
The answer is True its mentioned that in 1999 they used it as a technique
According to these criteria, the service sector covered in this paper is the economic activities other than agriculture, hunting, forestry and fishing, mining and quarrying, manufacturing, utilities (electricity, gas and water supply) and construction
That answer is True, cancer can't be prevented but doing all of the things they describe helps a lot.