Hostlight Industries Operate a Chain of Moderately Priced Hotels

Hostlight Industries operate a chain of moderately priced hotels.There are many businesses that compete with them for tourist dollars,and some nights during the tourist season their hotels are only half full.Other nights they have to turn away guests because there are no vacancies.Assuming the quality of the rooms and the services provided by the hotels remain the same,what could Hostlight Industries use to fill unused rooms?

A) a yield management system
B) a capacity correlation system
C) service forecasting tools
D) capacity maintenance tools