In the context of motivation, is concerned with the choices that people make about how long they will put forth effort in their jobs before reducing or eliminating those efforts.

Initiation of effort

Explanation:

 According to the given motivational context, the initiation of the efforts is mainly concerned with the different types of choices given to the people that puts maximum efforts in the job and also eliminating the unwanted efforts.

The motivation of initiating the efforts is plays an important role for providing the various types of effective solutions that helps in making some effective decisions and it basically focuses on the given specific task. It also helps in accomplishing the given goals and also emphasizing the various types of benefits.

 Therefore, Initiation of efforts is the correct answer.

i only have part a but here is the first one: - lewis and clark are born

- lewis marries sacajawea and clark is jealous  

- clark drowns lewis and then goes to jail