<em>The correct option is C) working too many hours</em>
A work permit is necessary for all the employees which are under the age of eighteen. The work permit protects the rights of the underage employees and ensures that they are not given tasks which are difficult. The work permit also grants the underage employees to work for lesser hours and on their flexible times so that their education continues along with their work. Generally, the work permit can be granted by filling a form which might be available on the website of the company or organization.