A personal network is a group of human connections that an individual is familiar with and expects to communicate with at regular intervals to support a set of activities.
Being connected to a network of resources for mutual development and growth is necessary for having a strong personal network.
Also, introducing yourself to other people and connecting with them is also human networking.
So, options B and C are correct as connecting to a friend and with the help of that friend connecting to other people is networking.
The other options are incorrect as:
Thus Option B and C are correct situations for human networking.
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