Final answer:
The marketing manager's accomplishment was high—his team created presentations that increased sales by 30%, far exceeding the organization's goals.
Step-by-step explanation:
While selecting the most appropriate word to fill in the blank, the context clues show that the manager and his team had a significant positive outcome. Since the result of the team's efforts was an impressive increase in sales, one can deduce that the missing word should reflect a notable success, gain, or achievement.
In providing an answer to this question, I would submit 'accomplishment' as the word that best fits the blank. This is supported by the fact that the team exceeded expectations significantly and 'accomplishment' appropriately conveys this sense of achievement. This term encapsulates the idea that not only were the set goals met, but they were also surpassed, which indicates a high level of performance and success.