The question asks to identify the Veda that primarily deals with Karmakāṇḍa.
Karmakāṇḍa refers to the ritualistic aspect of the Vedas. It includes hymns, prayers, and instructions related to sacrifices, ceremonies, and prescribed duties.
Among the four Vedas, the Yajurveda is distinctly characterized by its focus on Karmakāṇḍa. It contains prose mantras (yajus) specifically intended for recitation during sacrificial rituals (yajñas).
Based on its content, the Yajurveda is the Veda that primarily concentrates on Karmakāṇḍa (ritualistic actions and sacrifices).