In the context of the passage, “predatory marketing” specifically refers to i. unethical efforts by unlicensed clinics to lure gullible parents to seek cures even for commonly incurable conditions. ii. the practices adopted by unauthorised clinics to edge ahead of their competitors in the field and grab maximum possible patients. iii.the act of employing advertising or marketing strategies in the medical field due to the absence of stringent enough regulations against the same.