Option (c) is correct

The statements that are so related that they cannot both be true, although both may be false are:

A. All fungi are living beings.

B. No fungi are living beings.

These statements are contradictory. If statement A is true, then there must be at least one fungus that is a living being, which contradicts statement B. If statement B is true, then there cannot be any fungi that are living beings, which contradicts statement A.

Therefore, statements A and B cannot both be true, although both statements may be false.

विकल्प (c) सही है।

जब दो कथनों के बीच आपस में विपरीत का सम्बन्ध हो तो वे आपस में सत्य नहीं हो सकते यद्यपि असत्य हो सकते हैं।

अतः, “सभी कवक सजीव होते हैं” ('A' प्रकार कथन) तथा “कोई भी कवक सजीव नहीं होते हैं” ('E' प्रकार कथन) – ये दोनों कथन आपस में सत्य नहीं हो सकते यद्यपि असत्य हो सकते हैं।