Final answer:
The correct answer is D. Walk-ins. Walk-ins are people who apply for a job based on a sign on an organization's premises without a prior appointment or invitation.
Step-by-step explanation:
The correct answer to the question is D. Walk-ins. Walk-ins are people who apply for a job based on a sign on an organization's premises without a prior appointment or invitation. They simply walk into the organization and inquire about job opportunities.
For example, if a person sees a sign outside a store that says 'Now Hiring' and decides to walk into the store and ask for a job application, they would be considered a walk-in applicant.
Walk-ins are a common method of job application, especially for entry-level positions or jobs in retail and hospitality industries.