Which of the Following Persons, Who Have Left a Home

Which of the following persons, who have left a home Member State and reside in a host Member State, CANNOT be regarded as a worker within the meaning of Article 45 TFEU?

A) A drug addict who participates in a drug rehabilitation scheme for which its participants are paid.
B) A fisherman who works approximately 10 hours per week and is paid only when caught fish are sold.
C) A person who has been looking for employment for six months but has not been successful.