Department 3 Has 2500 Hours

Multiple Choice

Department 3 has 2500 hours. Transfers are allowed to departments 2 and 4, and from departments 1 and 2. If A_i measures the labor hours allocated to department i and T_ij the hours transferred from department i to department j, then

A) T₁₃ + T₂₃ - T₃₂ -T₃₄ - A₃ = 2500
B) T₃₁ + T₃₂ - T₂₃ -T₄₃ + A₃ = 2500
C) A₃ + T₁₃ + T₂₃ -T₃₂ - T₃₄ = 2500
D) A₃ - T₁₃ - T₂₃ + T₃₂ + T₃₄ = 2500