When formulating optimization problems, which of the following represent the typical sequence?
a. (1) text-based formulation, (2) diagram, (3) algebraic formulation
b. (1) text-based formulation, (2) algebraic formulation, (3) diagram
c. (1) diagram, (2) algebraic formulation, (3) text-based formulation
d. (1) diagram, (2) text-based formulation, (3) algebraic formulation
e. (1) algebraic formulation, (2) diagram, (3) text-based formulation
Answer: d