Correct option is D
Statement:
Global warming has become an unprecedented issue over the globe.
Arguments:
I. Urban lifestyle produces a vast amount of greenhouse gases.
(This is a strong argument because it provides a direct cause for global warming. Greenhouse gases are known to trap heat in the atmosphere, contributing to global warming. Hence, this argument is relevant and valid.)
II. Change in temperature in many countries is an indicator of global warming.
(This is also a strong argument because it highlights an observed effect of global warming. Changes in temperature are a direct consequence of the phenomenon, making this argument relevant and valid as well.)
Thus, correct option is (d).