Jim is interested in fixing up an old 1967 Mustang. As he has not seen anything he wants in the local papers or online groups that he belongs to, he told his friend John. John was talking to his...

Jim is interested in fixing up an old 1967 Mustang.  As he has not seen anything he wants in the local papers or online groups that he belongs to, he told his friend John. John was talking to his workmates and Alex mentioned that his neighbor had one for sale in his yard.  John told Jim and went to check it out and eventually bought it. What is this a demonstration of Jim using?

his primary group

his social exchange

his social network

none of the above