Answer:
D) activation
Step-by-step explanation:
Motivation is the act or the experience of aversion or a desire. In the given case study, Sarah began ger ballet classes with very hard work in order to achieve her goals.
Activation is the characteristic of motivation which involves the first steps or the initial stride which is taken in order to achieve a particular goal. It is the motivation to activate towards the goal.
Hence, Sarah is demonstrating activation characteristic of motivation.