Answer:
Alex is a part-time worker
John is unemployed
Step-by-step explanation:
Alex is a full-time student who works part-time on weekends, this means he is considered as being employed and a part of the labor force.
John is unemployed at the moment even though he has not responded to interview requests from banks. The fact that he applied to be a realtor last week, shows that he is willing to work.
Part-time workers and people who are unemployed but actively looking for work are classified as part of the labor force.
Therefore Alex and John will be counted as part of the labor force.