Answer:
The correct answer is option E.
Step-by-step explanation:
The government can intervene in the market when it becomes inefficient. Though generally, markets are efficient, inefficiencies arise because of asymmetric information, moral hazard and, externalities.
The government can intervene in the market in case of positive and negative externalities. In case the consumers do not have perfect information about the qualities of a product, the government can intervene to eradicate inefficiencies.