Correct option is (a) chariots
Megasthenes has mentioned that there were one committee and six sub committees. The six subcommittee and their areas of activities are as follows:
• The first subcommittee looked after navy.
• The second subcommittee looked after transport and communications.
• The third subcommittee looked after infantry.
• The fourth subcommittee had the responsibility of horses.
• The fifth had the responsibility of chariots.
• The sixth had the responsibility of elephants.
