Question

A factory was experiencing a disproportionately large number of defects coming from a particular machine and chose to research the problem by dismantling the equipment to evaluate measures of wear on its various parts. This is an example of ______.

a. direct observation

b. linguistic behavior

c. physical traces

d. verbal observation

e. None of the above

Answer 1

option C is correct

c. physical traces

(since we would checking the traces left behind in the past by the machine)