As per the passage what are the four names of the Vedas?

In the most generic context, a Samhita may refer to any methodical collection of text or verses: Any shastra, sutra, or Sanskrit Epic, along with Vedic texts, might be referred to as a Samhita.[1]Samhita, however, in contemporary literature typically implies the earliest, archaic part of the Vedas. These contain mantras – sacred sounds with or without literal meaning, as well as panegyrics, prayers, litanies and benedictions petitioning nature or Vedic deities.[3] Vedic Samhita refer to mathematically precise metrical archaic text of each of the Vedas (Rigveda, Yajurveda, Samaveda and Atharvaveda).The Vedas have been divided into four styles of texts – the Samhitas (mantras and benedictions), the Brahmanas (text on rituals, ceremonies, sacrifices and symbolic-sacrifices), the Aranyakas (commentaries on rituals, ceremonies and sacrifices), and the Upanishads (text discussing meditation, philosophy and spiritual knowledge).[7][8][9] The Samhitas are sometimes identified as karma-khanda (कर्म खण्ड, action / ritual-related section), while the Upanishads are identified as jnana-khanda (ज्ञान खण्ड, knowledge / spirituality-related section).[7][10] The Aranyakas and Brahmanas are variously classified, sometimes as the ceremonial karma-khanda, other times (or parts of them) as the jnana-khanda.The Vedic Samhitas were chanted during ceremonies and rituals, and parts of it remain the oldest living part of Hindu tradition.[3]A collective study of Vedas and later text suggests that the compendium of Samhitas and associated Vedic texts were far larger than currently available. However, most have been lost at some point or over a period of Indian history.[11]

Rigveda, Yajurveda, Samaveda and Atharvaveda