Highlight any four aspects observed by the Portuguese Traveller Barbosa on the Urban Core of the Vijayanagara Empire.
Barbosa has described that the houses of ordinary people are thatched:
i. Houses are well built and strong
ii. Houses were arranged according to occupations in long streets with many open places
iii. Entire area had many shrines and small temples which indicates the prevalence of variety of cults
iv. Rainwater tanks and temple tanks served as sources of water for the people.