Comprehensionhard · Past Paper

The software update was released yesterday, and today the help forums are flooded with complaints about battery drain. What is the most likely cause?

APeople are using their phones more than usual.
BThe new software update has a bug or is poorly optimized.
CThe batteries of all phones reached their end-of-life at the same time.
DThe weather got colder, affecting batteries.

✓ Correct Answer: BThe new software update has a bug or is poorly optimized.

A strong temporal correlation between an update and a specific problem points to the update as the cause.

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