I need an honest opinion. Please after answering this question, categorize it as very easy, easy, medium, hard, and very hard. CR is my weakest point and I would like to know how I stand compared to others.Thanks in advance

In the past decade, a decreasing percentage of money spent on treating disease X went to pay for standard methods of treatment, which are known to be effective though they are expensive and painful. An increasing percentage is being spent on non-standard treatments, which cause little discomfort. Unfortunately, the nonstandard treatments have proved to be ineffective. Obviousy, less money is being spent now on effective treatment than treating disease X than was spent ten years ago.

Which of the following, if assumed, allows the conclusion above to be properly drawn

1. Varieties of disease X requiring expensive special treatment have become less common during the past decade

2. Nonstandard methods of treating disease X are most expensively now than they were a decade ago.

3. Of total medical expenditures, the percentage that is due treatment of disease X increased during the past decade

4.Most of the money spent on treating disease X during the last decade went to pay for nonstandard treatment

5. The total amount of money spent on treating disease X declined during the past decade