In the 2021 Toxics Release Inventory, the Kraft Heinz Foods Facility in Wisconsin was listed as #2 of the top five toxics releasing facilities in Wisconsin. This news was published in the local newspaper and got the attention of the plant manager who is now considering some improved abatement techniques. This is an example of what type of leverage used to fight pollution :

a. liability

b. informal community pressure

c. asymmetric information

d. moral suasion

e. transaction costs

Explain.