Final answer:
When relaxing the hair, it is recommended to not remove more than 75% of the natural texture.
Step-by-step explanation:
The correct answer is B) 75%.
When relaxing the hair, it is recommended to not remove more than 75% of the natural texture. Removing more than 75% can lead to excessive damage and weaken the hair.
For example, if someone's natural hair texture is curly, relaxing the hair should not result in straight hair, but rather a looser curl pattern.