Which of the following activities is mentioned to trigger the release of GABA?
答案解析
The question focuses on identifying activities that trigger the release of specific neurotransmitters, in this case, GABA. The correct answer is A, Watching videos of fractals in nature, as it is explicitly mentioned in the context. The other options, while potentially relaxing or enjoyable, are not mentioned in the context as triggers for GABA release, making them incorrect.
正确答案：A