To identify the best-supported inference, let's break down the key points from the passage:
1. Charities will start scrutinizing major donors for signs of financial wrongdoing.
2. This process will disqualify up to ten percent of all prospective donors.
3. The screening will fail to identify one-third of donors who have committed financial maleficence.
4. Therefore, about five percent of actual donors will still provide unethically sourced money.
Now, let's evaluate each answer choice:
(A) **Incidences of financial wrongdoing are likely to rise by five percent.**
- The passage does not provide information to support this inference. It discusses the screening process and its effectiveness, but not an increase in financial wrongdoing.
(B) **The amount of money available to charities is likely to decrease.**
- This is a reasonable inference. Since up to ten percent of prospective donors will be disqualified, the total amount of donations may decrease.
(C) **The funding for social initiatives by charities is likely to fluctuate across a wider range.**
- The passage does not provide information on how the range of funding for social initiatives might fluctuate. It only discusses the proportion of donors disqualified and the proportion of unethically sourced money.
(D) **Donations made solely for the benefit of the donor are likely to become rarer.**
- The passage does not address the motivations behind donations. It focuses on the ethical sourcing of the donations.
(E) **Potential first-time donors are likely to increase in number by ten percent.**
- There is no information in the passage about an increase in the number of potential first-time donors.
Given the information, the best-supported inference is:
**(B) The amount of money available to charities is likely to decrease.**
This inference is supported by the passage's statement that up to ten percent of prospective donors will be disqualified, suggesting a potential decrease in total donations.