Which research method involves an in-depth investigation of an individual subject?

Aresearcher conducts a focus group to learn about attitudes towards hygiene and disease prevention. two weeks after the focus group, the researcher learns one of the subjects had a heart attack at home and was hospitalized, but made a full recovery. based on dhs regulations, the researcher report this event to the irb? no, this does not need to be reported since the subject had the heart attack when they were home, not at the focus group. no, this does not need to be reported since it is unrelated to participation in the study. no, this does not need to be reported because two weeks have passed. no, this does not need to be reported since the subject recovered.

No creative answers only the right onesanswer asapif you learned oratory, what could you do? a. give good speeches b. understand the law c. make fun of peopled. race chariots

When arriving at a navigation lock what is the order of priority