Final answer:
To properly brush a client's hair, start from the ends and gently work towards the scalp to avoid damage.
Step-by-step explanation:
When brushing a client's hair, the correct method is d) from the ends first, then toward the scalp. Starting from the ends helps to gently detangle the hair and prevents pulling or breaking of the strands which can occur if you begin brushing from the scalp down. It's essential to be gentle and to work in sections, slowly making your way up to the scalp after the ends are detangled to minimize any damage to the hair.