22) A

2011
75% of Category A cases were responded within 8 minutes
Number of Category A cases in 2011 = 2.23 million ≈ 2.24 million
Number of Category A cases receiving a response within 8 minutes = 75% x 2.24 = 1.68 million

2010
74.3% ≈ 74% of Category A cases were responded within 8 minutes
Number of Category A cases in 2010 = 2.08 million ≈ 2.10 million
Number of Category A cases receiving a response within 8 minutes = 74% x 2.24 = 1.55 million

Difference = 1.68 – 1.55 = 0.13 million
The closest to this is 0.12 million
Answer is A

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