I think it should be because diplomats is the representative of a nation and negotiating with other nations could be more easier if we're already friendly with the diplomat. Also the way we treat their diplomat is also the way of how we treat the nation he/she representing and it would add a good standing in the global status if we are respecting the diplomats.
Answer:
For Mongolian nomads, a change in season means more than a change in weather - it means a new camp. The move to new pasture often includes a celebration of some kind. So most Mongolian seasons begin with a party.
Hope this helped, have an awesome day!
A is the answer i beleive<span />