Answer the Following Questions Using the Information Below

Answer the following questions using the information below:
Dubai Kitchens Company makes a household appliance with model number X500. The goal for 2015 is to reduce direct materials usage per unit. No defective units are currently produced. Manufacturing conversion costs depend on production capacity defined in terms of X500 units that can be produced. The industry market size for appliances increased 10% from 2014 to 2015. The following additional data are available for 2014 and 2015:

-Overall, was Dubai Kitchens' strategy successful in 2015?

A) Yes, because operating income increased.
B) No, because more units were produced and sold.
C) No, because the selling price per unit decreased.
D) Yes, because less direct materials were used.