In "Technological Testing Grounds" (2020), how do technological advances threaten the human rights of migrants: a) The automated drones that patrol national borders force migrants to take more dangerous migration routes, which results in an increased number of deaths; b) Algorithms used to assess people's "credibility" integrate the same discriminatory standards as human decision-makers; c) Partnerships between governments and private companies endanger the privacy of people whose information is collected (e.g., at borders); d) all of the above