You determine if the evidence is relevant and if it directly answers the writing prompt when writing your essay by seeing if any quotes are relevant to the question or explains or possibly gives any background.
Answer:
When discussing a price increase in a business-to-business environment, it is important to remember that our customers have probably had to have the same discussion with their own customers. A company exists only as long as it earns a profit and it can only do that if it delivers a quality product or service at the right price. This means that the key to any conversation about raising the price ...
The word you're looking for is prowess, however you didn't post a list. Prowess means superior skill, strength, or ability. Other similar words are expertise, aptitude, and mastery.
