When market impact costs occur:

Group of answer choices

An order to buy or sell shares of a single security places pressure on the security's price in the market.

A mutual fund trades frequently resulting in substantial commissions to the brokerage firm.

A security experiences a difference between the bid and the ask price.

A company's stock price changes in the market due to a significant event (such as when British Petroleum's stock price plummeted after the oil rig explosion in the Gulf)

none of the above