4. Wacker Company has two regional offices. The data for each are as follows: New Jersey S 298,000 4,500,000 1,200,000 Maryland S 290,000 Operating assets 2,400,000 Net operating income 1,008,000 Revenues What is the Maryland Division's return on investment? a) 0.42 b) 0.54 c) 0.96 d) 4.12