The Chinese traveler Yuan Chwang (Hiuen Tsang) who visited India, recorded the general conditions and culture of India at that time. In this context, which of the following statements is/are correct?

1. The roads and river routes were completely immune from robbery.

2. As regards punishment for offenses, ordeals by fire, water, and poison were the instruments for determining the innocence or guilt of a person.

3. The tradesmen had to pay duties at ferries and barrier stations.

Select the correct answer using the codes given below.