In the Example Provided in the Text of Analyzing a Job

Multiple Choice

In the example provided in the text of analyzing a job when there are no incumbents,Dr.Fields

A) Asked the manufacturer of the new equipment to learn if there was similar equipment in operation elsewhere so he could interview those incumbents.
B) Interviewed engineers responsible for designing the new equipment.
C) Obtained blueprints for the new equipment.
D) Both A & B.
E) All of the above.