Components of a product or system must be

1) Reliable

2) Flexible

3) Purposeful

4) Interchangeable

The correct answer to the following question will be Option D (Interchangeable).

Explanation:

Interchangeability applies towards any portion, part as well as a unit that could be accompanied either by equivalent portion, component, and unit within a specified commodity or piece of technology or equipment. This would be the degree to which another object can be quickly replaced with such an equivalent object without re-calibration being required.

The other three solutions are not situation-ally appropriate, so option D seems to be the right choice.