Use the Case Below to Answer the Following Question(s)

Multiple Choice

Use the case below to answer the following question(s) .
S&N Manufacturing makes four different steel sheets,A,B,C,and D,with different percentages of iron.Each sheet must flow through five departments,forming,rolling,sintering,painting,and quality check.The table below shows the relevant data.Production rates are shown in units/hour.(Sheet A uses imported steel and does not require rolling.) S&N wants to determine the number of steel sheets to produce in order to maximize monthly profit.
Let A,B,C,and D denote the number of units of model A,B,C,and D to be produced,respectively.
-For the data given above,the objective function is ________.

A) Maximize = 260A + 310B + 410C + 660D
B) Maximize = 220A + 250B + 310C + 530D
C) Maximize = 40A + 60B + 100C + 130D
D) Minimize = 130A + 100B + 60C + 40D