Question

why did here begin designing prosthetic limbs? he wanted the ability to walk faster and further. he wanted to help teenagers like him who use artificial legs. he wanted a safer way to climb mountains. he wanted to be able to rock climb with his artificial legs.

Explanation:

Without additional context about "Here", we need to rely on the provided options. The most reasonable motivation for designing prosthetic limbs among the given choices is to help others in a similar situation.

Answer:

He wanted to help teenagers like him who use artificial legs.