Option (C) is correct because the textbook explicitly states that the Bharatiya Janata Party draws inspiration from Deendayal Upadhyaya's ideas of integral humanism and Antyodaya. This is mentioned as one of the key guiding philosophies of the BJP, along with building a strong and modern India based on India's ancient culture and values. Option (A) Bahujan Samaj is incorrect as it relates to the Bahujan Samaj Party, not BJP. Option (B) Revolutionary democracy is not mentioned in the context. Option (D) Modernity is incorrect because while BJP wants to build a modern India, 'Modernity' is not stated as its guiding philosophy.