Secondary: prepares a student for immediate employment in many health careers or for additional education after graduation.
post-secondary: is after high school, including training in a vocational-technical school, community college or university.
Answer:
B. Modifying the rules
Explanation:
The answer is not A because there's no rule that the team must be rotated.
As for increasing or decreasing the difficulty, it is really subjective to the point of view of each team.
Therefore, the answer is "modifying the rules".
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