Find the ID, name, dept name, salary for instructors whose salary is greater than $80,000 .

• A. {t | t ε instructor ∧ t[salary] > 80000}
• B. Э t ∈ r (Q(t))
• C. {t | Э s ε instructor (t[ID] = s[ID]∧ s[salary] > 80000)}
• D. None of the mentioned