Concept:
The Brahmavihāras are known as the “Four Sublime States” or “Four Divine Abodes.” These are elevated mental attitudes cultivated through meditation and ethical living. They represent the ideal emotional attitudes a Buddhist practitioner should develop toward all living beings.
Step 1: Listing the Four Brahmavihāras.
The four Brahmavihāras are:
• Maitrī (Mettā) -- Loving-kindness
• Karuṇā -- Compassion
• Muditā -- Sympathetic joy
• Upekṣā -- Equanimity
Step 2: Identifying the correct options.
• B. Maitrī
This is the first Brahmavihāra.
• D. Muditā
This is the third Brahmavihāra.
Thus, B and D are correct.
Step 3: Understanding why other terms are incorrect.
• Nirvāṇa is the ultimate liberation.
• Dhamma refers to the teaching.
• Jñāna means wisdom or knowledge.
These are important Buddhist concepts but not members of the Brahmavihāra group.
Step 4: Final conclusion.
Therefore, the correct answer is:
\[
\boxed{(1)\ \text{B and D only}}
\]