भारतीय दर्शन के कितने रूढ़िवादी (आस्तिक) संप्रदाय हैं जिन्हें 'षड्दर्शन' के नाम से जाना जाता है?

The philosophical system propounded by Bhakti saint Ramanujacharya is known as:

The theology of the Varkari movement is primarily rooted in which philosophy, as articulated by Sant Dnyaneshwar?

Which of the following is NOT accepted as a valid epistemological source (Pramana) in Jainism?