What is the implied effect of ministers banning onshore wind energy and undermining solar power on the energy sector?

A. It promotes the development of alternative renewable energy sources

B. It leads to a decrease in the overall investment in renewable energy

C. It encourages the public to protest against the government's energy policies

D. It results in an increase in the consumption of traditional fossil fuels

This question考察的是对政策影响的理解和推理。选项A和C没有在参考文本中得到暗示。选项D虽然可能是一个结果，但不是最直接的效应。正确答案是B，因为禁止岸上风能和发展太阳能可能会减少对这些可再生能源的投资。

正确答案：B