Help me, i’ll make you brainliest:)

Measuring your progress by weight (only)? a: the fit of your clothes b: bathroom scale c: body fat scale d: body fat caliper

Drea has never had alcohol, but she believes her friends when they tell her that almost everybody at their school drinks on a regular basis. in reality, very few students at the school drink alcohol. which statement best describes what is occurring in this situation? a. peers are influencing what drea thinks of as normal behavior. b. peers are pressuring drea to drink. c. drea is not really influenced by what her peers think. d. drea is giving in to peer pressure.

[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.