What does the following query find?(SELECT DISTINCT r.sidFROM boats b, reserves rWHERE b.bid = r.bidAND b.color = 'red')MINUS(SELECT DISTINCT r.sidFROM boats b, reserves rWHERE b.bid = r.bidAND b.color = 'g

• A. Find the sailor IDs of all sailors who have reserved red boats but not green boats
• B. Find the sailor IDs of at least one sailor who have reserved red boats but not green boats
• C. Find the sailor Ids of atmost one sailor who have reserved red boats but not green boats
• D. None of These