If three small paintings are selected for the exhibit, which of the following must also be selected?

Explanation: এই puzzle টির condition গুলো হল: 1. কমপক্ষে একটি Sculpture select করতেই হবে। 2. কমপক্ষে একটি Large work select করতেই হবে। 3. 3টি Large work একসাথে select করা যাবেনা। 4. 4টি Small work একসাথে select করা যাবেনা। 5. Small Sculpture-টি select করা হলে কমপক্ষে একটি Small Painting select করতেই হবে। 3-টি small painting select করা হলে small sculpture টিকে select করা যাবেনা কারণ Small Sculpture + 3 Small Paintings = 4 Small works, which violates Condition 4. \(\therefore\) Small Sculpture cannot be selected. Condition 1 (At least one sculpture) must be fulfilled, so the Large Sculpture must be selected. Condition 2 (At least one large work) is fulfilled by the Large Sculpture. Therefore, the Large Sculpture must also be selected.