Consider the following eras in early India: 1. Shaka era 2. Kalachuri era 3. Vikrama era 4. Harsha era 5. Gupta era Which one of the following is the correct chronological order of the above eras starting with the earliest ?

1. A1-2-3-4-5
2. B3-1-5-2-4
3. C2-3-1-4-5
4. D3-1-2-5-4