निम्नलिखित में से कौन से वर्ग एक दूसरे से पूरी तरह से भिन्न हैं, अर्थात कोई भी व्यक्ति एक ही समय में एक से अधिक वर्ग से संबंधित नहीं हो सकता है?

In a standard Venn diagram problem where circle W and circle Z are disjoint (do not overlap), which of the following statements is definitely correct?

In a Venn diagram, the triangle represents married persons, the rectangle represents employed persons, and the circle represents golf players. Which region represents married persons who play golf but are NOT employed?