Answer the Following Question(s)using the Information Below

Answer the following question(s) using the information below.A manufacturing firm is able to produce 1,000 pairs of shoes per hour, at maximum efficiency.There are three eight-hour shifts each day.Due to unavoidable operating interruptions, production averages 800 units per hour.In the month of June the plant actually operated only 25 days due to avoidable shut downs.
-What is the practical capacity for the month of April?

A) 600,000 units
B) 720,000 units
C) 744,400 units
D) 576,000 units
E) 480,000 units