Which of the following caused by success of Magadh ?
Magadha enjoyed a advantageous geographical position in the iron age as most of the deposits were located there.
The rulers of this state had very good **.
The capitals of Magadha were situated at strategic positions.
No other power at that time had the courage to ** it
(a) 1, 2 and 3 (b) 1 and 2 (c) 2 and 4 (d) 1 and 4
