Consider the following steps which are involved in constructing a function analysis system technique of value engineering:
1. Find the critical path
2. Prepare a function worksheet
3. Listing of functions
4. Diagram layout
Which of the following gives the correct sequence of steps?
(a) 1, 3, 2, 4 (b) 2,1,3,4
(c) 4, 2, 3, 1 (d) 3, 2, 4, 1