<em>Job shadowing</em> is a type of on-the-job employee job training in which a <em>new employee follows and observes a trained and experienced employee,</em> is an effective form of job training for certain jobs.
<em>Volunteering</em> is the contribution of time, effort and talent to a need, cause or mission without financial gain, usually is done to help people in your community.
<em>An internship</em> is an opportunity offered by an employer to potential employees (interns), to work at a firm for a fixed period of time. Interns are usually undergraduates or students, and most internships last between a month and three months.
Job development is to create job opportunities for job seekers by helping employers determine their hiring needs
Therefore we can conclude that Job shadowing is the correct answer.
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