Final answer:
The subject of this question is Business and the grade level is College. The sentence provided is discussing the requirement to replace or repair defective parts while preserving the original approval or certification. Keywords related to this question include defective material, parts, replaced, repaired, original approval, and preserved.
Step-by-step explanation:
The subject of this question is Business and the grade level is College.
The sentence provided is an example of a clause used in contracts or agreements. In this particular sentence, it is discussing the requirement to replace or repair defective parts in a way that maintains the original approval or certification. This is important to ensure that the quality and standards of the original product are preserved.
Some keywords related to this question are: defective material, parts, replaced, repaired, original approval, and preserved.