Difficulty: Easy
Correct Answer: if only assumption I is implicit.
Explanation:
Introduction / Context:
Public-health advisories typically presume citizens can act on the suggested measures. Here, the measures (repellents/nets) have a cost component.
Given Data / Assumptions:
Concept / Approach:
The advisory is meaningful only if residents are in a position to follow it—i.e., affordability/availability exist (Assumption I). A conjecture that people “may ignore” due to other needs (Assumption II) is not necessary for issuing the advisory; authorities do not need to assume non-compliance to recommend best practices.
Step-by-Step Solution:
Verification / Alternative check:
If residents could not afford nets/repellents at all, a different advisory (e.g., community fogging) would be expected.
Why Other Options Are Wrong:
Choosing II alone or “either” introduces unnecessary speculation; “neither” ignores feasibility.
Common Pitfalls:
Equating “some will ignore” (empirical) with an assumption needed to issue advice (logical).
Final Answer:
Only assumption I is implicit.
Discussion & Comments