Final answer:
The table provided suggests the presence of negative externalities in the market, but the specific value of the externalities is not given.
Step-by-step explanation:
The table provided includes information on marginal private cost, marginal social cost, and marginal social benefit in the production and consumption of chemical fertilizer.
By comparing the marginal social cost and marginal private cost, we can determine the presence of externalities.
In this case, the marginal social cost is higher than the marginal private cost, indicating the presence of negative externalities in the market.
However, the extent of the externalities is not provided, so we cannot determine the exact value.
Therefore, the correct answer is D) not enough information is provided to determine whether or not there are externalities.