Consider the following statements about the spread of Buddhism in India.

1. Asoka is credited with installing over 80,000 stupas across the Indian subcontinent.

2. Viharas, which were worshiping places, and Chaityas, which were resting places were built to enable monks to travel all over the subcontinent.

3. Rich donations were given to the stupas by the Shrenis.

Which of the above statements is/are correct?