To this aim, European states followed a threefold strategy. Firstly, they allocated generous budgets for the accommodation and expenses of the diplomatic missions sent to other countries. In the 18th century, envoys, ambassadors and accompanying crew were selected from experienced and reliable civil servants closer to the ruler. After the recruitment, the diplomatic staff were also subject to additional training. Some training were provided to senior and experienced staff. Thirdly, as different from the 18th century resident ambassadors, the ambassadors of permanent diplomacy in the 19th century were not only seen as the envoys of their ruler. They were also authorized to develop instant policies as a reaction to sudden developments and crisis situations.  The correct answer is B.