The most appropriate answer will depend on your level of experience in relation to your superior.

If the person you report to is a master tailor, he may be expecting you to do as you're told. In which case, you would add that you would find an appropriate time to speak with your superior to learn why that technique is used in that situation. This demonstrates your coachability and willingness to get along with others.

If the person you report to is the business owner and is mostly in charge of running the business, she may be expecting to defer to your experience. In this case, you would do well to demonstrate your diplomacy and patience.

Example Answer: "I would tell Mr Allen that there's an alternative method and explain the benefits of using that method. Of course, at the end of the day, he's the boss. I'll use whatever method he decides should be used, so long as we're on the same page about the expected outcome."