Answer:
b. Promotion
Step-by-step explanation:
This is a promotional marketing strategy. Promotional marketing is a strategy that aims to generate more value for a product or service, in order to build customer / audience loyalty. This is usually a sales strategy that can also be applied to political campaigns. Hillary's strategy was to use being the first possible US president as a differentiation from her campaign. This is a way of bringing a group of voters sympathetic to the idea proposed (female president) to the election campaign. This is reinforced by the proximity she sought in having structured meetings with voters.