What range does the pH of conditioner fall in?

Conditioner typically falls within the pH range of 2.0-4.5. This acidity helps to flatten and smooth the cuticle of the hair, resulting in softer, shinier hair. pH levels outside of this range may not be as effective in conditioning the hair.

Options B, C, and D have pH ranges that are outside of the typical range for conditioner, making them incorrect choices. pH levels above 4.5 may not be as effective in closing the hair cuticle, thus reducing the benefits of the conditioner.