In which one among the following texts does the term kshetra-patni ('mistress of the field') originate?

The term kshetra-patni ('mistress/lady of the field'), invoked in agrarian/fertility rituals, occurs in the Atharvaveda, which is the Vedic text most concerned with agriculture, healing, magic and household ritual. The Rigveda is overwhelmingly hymnic/cosmological; Panini's Ashtadhyayi is a grammar; Kautilya's Arthashastra is a political-economic treatise. R.S. Sharma's Material Culture and Social Formations in Ancient India cites this Atharvavedic reference while discussing women's relation to land. (early consensus; verify with official UPSC key when released). Read more: Kshetra-patni in the Atharvaveda: The ‘Mistress of the Field’ and Vedic Agricultural Ritual.