Consider the following statements regarding the Global Warming Potential (GWP) of greenhouse gases: 1. Carbon dioxide (CO2) is used as the reference gas with a GWP value of 1 across all timescales. 2. The GWP of a greenhouse gas depends on both its efficiency at absorbing infrared radiation and its atmospheric lifetime. 3. Nitrous oxide (N2O) has a GWP nearly 300 times greater than CO2 over a 100-year timescale. Which of the statements given above are correct?

Options:

• A: 1 and 2 only
• B: 2 and 3 only
• C: 1 and 3 only
• D: 1, 2 and 3

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