Consider the following events in the history of India:
Rise of Pratiharas under King Bhoja
Establishment of Pallava power under Mahendravarman I
Establishment of Chola power by Parantaka I
Pala dynasty founded by Gopala
What is the correct chronological order of the above events, starting from the earliest time?
a. 2 - 1 - 4 - 3
b. 3 - 1 - 4 - 2
c. 2 - 4 - 1 - 3
d. 3 - 4 - 1 - 2