Professor Newton is planning a research study with human participants, who will have to wear a head-mounted eye-tracking device during data collection. While the device is not painful or dangerous, it can be a bit uncomfortable, and some participants may get a headache from wearing the device. In order to conduct the study ethically, Professor Newton must ensure that which of the following is favorable?a. risk/benefit ratiob. privacy and confidentialityc. scientific standardsd. random assignment
