Difficulty: Easy
Correct Answer: if only conclusion I follows
Explanation:
Introduction / Context:
The service explicitly provides traffic diversions and other information via SMS. We test whether it must thereby provide “latest updates” and whether it will “enormously” boost phone sales.
Given Data / Assumptions:
Concept / Approach:
If commuters can query and receive diversion information, then they can obtain traffic updates. Predicting handset sales is speculative.
Step-by-Step Solution:
Verification / Alternative check:
Even if phone sales are unchanged, the service can still provide updates.
Why Other Options Are Wrong:
Any option selecting II relies on unprovided market assumptions.
Common Pitfalls:
Assuming every digital public service materially expands device ownership.
Final Answer:
if only conclusion I follows
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