Graph: x-axis time, y-axis usage. Sharp jump month 5. Likely event:
AUser churn.
BServer outage.
CPrice hike.
DPromotional campaign launched.
Answer & Solution
Correct answer: D. Promotional campaign launched.
1. Sharp upward jump matches a marketing push.
_Source: 501-GMAT-Questions Sec 3 Integrated Reasoning_
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