After a Great Holiday Season When It Opened Its Doors

Multiple Choice

After a great holiday season when it opened its doors for business regularly at 6 A.M., a local retail store decides to continue to open at 6 A.M., even though many customers plan on arriving later to do their shopping. Such a plan by the retail store is:

A) efficient, since it worked previously.
B) inefficient, since most customers will revert to their normal shopping behavior after the holidays are over.
C) efficient, since it means that workers do not have to change their hours.
D) most likely to lead to lower operating costs for the store.