spread of Buddhism declined during the Sena age --- write two or three sentences in support of this statement. ​

Due to economic reasons.

Explanation:

The spread of Buddhism declined during the Sena age because of economic reasons. The Buddhist monasteries with large land grants focused on non-material pursuits, self-isolation of the monasteries from the world, loss in internal discipline in the sangha, and a failure to efficiently operate are also the reasons for the declining of Buddhism during Sena age or era.