Answer:
The correct option is option a.
Step-by-step explanation:
The given options are
A:an unrestrained market economy leads to too few or too many resources going to a specific economic activity.
B: one good is superior to another and drives it out of the market.
C:a good is too expensive for the market to provide.
D: the stock market experiences a very large loss.
Market failure is linked with the unrestrained market leading to imbalance in the resource distribution.
Option B is not correct it, as the one good being superior to another good is not a reason for market failure.
Option C is not correct because it is the failure of the product not the failure of the market.
Option D is not correct as it is a financial crises, not a market failure.