Answers follow:-
1 b) Australia (Austria is AUT)
2 a) Bahamas (Bahrain is BRN)
3 c) Belgium (Belarus is BLR; Belize is BIZ)
4 b) Cambodia (Cameroon is CMR)
5 b) Dominican Republic (Dominica is DMA)
6 a) Honduras (Hong Kong is HKG)
7 b) Iceland (Israel is ISR)
8 a) Kosovo (South Korea is KOR)
9 c) Lebanon
(until 2016!) (Liberia is LBR; Libya is LBA)
10 a) Maldives (Moldova is MDA)