In Scrum, the core values include Commitment, Courage, Focus, Openness, and Respect. Building Product Backlog items that have low business value can violate multiple Scrum values. Courage is violated as the team should have the courage to only work on items of high value that contribute to achieving goals. Focus is violated as focusing on low-value items detracts from achieving your Sprint and product goals. Respect is violated because delivering low-value items does not respect the time and effort of the team members and stakeholders. Therefore, the correct answers are Respect, Courage, and Focus.