Answer:
E) leading
Explanation:
Leading is one of the main functions of a manager and it requires a manager to be able to inspire and motivate their subordinates in order for them to increase their efficiency and productivity. Leadership is not something you can measure with numbers, it is something that you should feel. For example, Steve Jobs or Elon Musk are famous for inspiring their employees and motivating them to perform better.
Susan must be able to persuade the production department to work more time (possibly overtime) and more efficiently so that their products' demand is met.