Explanation:

- Correct Answer: Option 3 - applied

- This is the most appropriate word to use in the context of searching for a job. "Applied" refers to the act of submitting a job application.

- Option 1 - appointed

- "Appointed" means being officially assigned to a position or job. It is about selection, not applying.

- Option 2 - supplied

- "Supplied" means providing or furnishing something. This usually refers to materials or information, not job applications.

- Option 4 - approved

- "Approved" means giving approval or consent. This does not relate to job applications directly.