Answer: C. An actor who comes from a respected talent agency.
Step-by-step explanation:
Talent Agencies are professionals in the field. The people they send have been put through training programs that the Talent Agency knows will serve them well because they are in that same industry. For this reason, actors from Talent Agencies send the strongest signals.
Look at it this way, would you take investment advice from an investment banker or from an entrepreneur? Both could present very strong cases but the Investment Banker has expertise in the subject and is more likely to be picked.
It is the same here. The Talent Agency is believed to have expertise and so when they send someone, that person is considered first.