Mali is a low developed country, and its industry is still on a very low level, being responsible for only between one quarter and one fifth of the GDP of the country. The majority of the industry in Mali is based around the agriculture and livestock, thus manufacturing and processing food, with the mining, mostly of gold and phosphates, and the construction being the other two, though less important. The big risks on having this type of industry are that it is heavily dependent on the nature, mostly the weather conditions. If the weather conditions are not right in one year, it can make a big blow to the economy.
Reason: the rest of the options are all rewards that they allegdly would receive if they broke the law. This makes no sense, people are punished for breaking the law, therefore option A is the most logical out of your choices.
D - Mongolia. This is because it is a landlocked country which means it is only surrounded by countries, not oceans. Therefore, it would not have access to big oceans/seas.