A student who works hard to achieve good grades for the sole purpose of pleasing his parents would be said to have

Extrinsic motivation

Explanation:

Extrinsic motivation is a reward driven behavior. It is a scenario where an individual does a task solely for the aim of being rewarded, the reward they would get afterwards is their motivation, if there is no reward, they won't do it.

A student who works hard to achieve good grades for the sole purpose of pleasing his parents would be said to have Extrinsic motivation.

answer; i do believe its (b) 12.5 years of age;

if it is a supervisor that collects all the handmade products the word is you but if it goes straight to the machine made activity there isn't any word unless there is robot programmed to say you.