Option (b) is correct.

The propositions "Some camels are herbivorous" and "No camels are herbivorous" are so related that if one of them is true, the other has to be false and vice versa. If some camels are herbivorous, then it contradicts the statement that no camels are herbivorous. Conversely, if no camels are herbivorous, then it contradicts the statement that some camels are herbivorous.

विकल्प (b) सही है।

कथन B और D आपस में व्याधाती है अर्थात दोनों एक साथ न ही सही होगें न ही गलत अतः एक कथन सत्य होगा तो दूसरा असत्य होगा।