Final answer:
Developing heat-tolerant crops is an adaptation approach to climate change, as it helps agriculture adjust to higher temperatures caused by global warming.
Step-by-step explanation:
An adaptation approach to climate change involves adjusting practices, processes, and structures to moderate potential damage or to benefit from opportunities associated with climate change. The correct answer to the question "Which one of the following would constitute an adaptation approach to climate change?" is b) Developing heat-tolerant crops. This answer reflects an adaptation strategy by creating crops that can withstand higher temperatures, which may occur due to global warming. Other options, such as reducing greenhouse gas emissions, enhancing carbon sequestration, and implementing renewable energy technologies, are mitigation strategies aimed at reducing the causes of climate change rather than adapting to its effects.