Assertion. The tree topology is a hybrid topology created through a combination of Bus and Star topologies.

Reason. In tree topologies, at a time either bus topology transmission is followed or star topology transmission takes place but never both.

(c)

Assertion is true but Reason is false.

Explanation
The tree topology is a hybrid topology created through a combination of Bus and Star topologies. In tree topology, transmission takes place in the same way as in the bus topology.