Consider the following statements regarding the role of temples in Early Medieval India:

1. Temples not only functioned as religious centers but also as hubs of economic activity, controlling vast agricultural lands through devadana grants.
2. The temple economy led to the development of a centralized bureaucracy directly under royal control to manage temple estates.
3. Temples facilitated the integration of tribal populations into the caste system by incorporating them into their agricultural and religious networks.
4. Religious donations to temples were primarily aimed at consolidating the king’s political and religious legitimacy over the rural aristocracy.

Which of the above statements is/are correct?