In Káśmīra Śaivism, Śiva is considered the only reality, and it is a form of non-dualism. There are various schools and philosophical movements within Káśmīra Śaivism that are referred to by different names. These names are associated with different philosophical traditions and textual interpretations within Śaivism.
- Pratyabhijñā: This is a well-known school of philosophy within Káśmīra Śaivism. It focuses on the recognition (pratyabhijñā) of one's own identity with the Supreme, i.e., Śiva.
- Trika: Trika is another term often used to refer to Káśmīra Śaivism, specifically pointing to the three-fold approach (Trika) involving Śiva, Śakti, and the individual soul (jīva). It is a prominent system of thought in Káśmīra Śaivism.
- Spanda: Spanda refers to the concept of divine vibration or the dynamic aspect of Śiva, and it plays an important role in the philosophical framework of Káśmīra Śaivism.
Thus, the correct answer is (A) Pratyabhijñā, (B) Trika, (C) Spanda.