Mr. jones has suffered a severe stroke that has left him unable to walk, speak or dress and feed himself. he needs nursing care for several hours a day, but his wife has died and his adult son lives 1,000 miles away. which of the following options would most likely be the type of living arrangements that would best serve mr. jones's needs? a. an adult daycare facility b. an assisted living facility c. a nursing home d. an elderhostel

[120 total points] (public health) in one of the largest human experiments ever conducted, in 1954 a randomized controlled trial was run to see whether a vaccine developed by a doctor named jonas salk was effective in preventing paralytic polio. a total of 401,974 children (ages 6–9), chosen to be representative of those who might be susceptible to the disease, were randomized to two groups: 200,745 children (the control group c) were injected with a harmless saline solution (a placebo) and the other 201,229 children (the treatment group t) were injected with salk’s vaccine.what was the point of giving saline solution to the children who didn’t get the vaccine? explain briefly.