Deafness is to sign language as blindness is to: Group of answer choices

1. the inability to speak

2. the Braille alphabet

3. eyeglasses

4. a cane

Please Help!

Ineed advice! its importantokay so.. i made a bad choice at school and was sent to an alternative i go back to my home school at the end of the month ..and i'm seriously scared to go back because i know people have been talking about me behind my back calling me names.. and when i walk into first block everyone is going to stare and start talking about i've lost friends and i'm alone.. the whole school now thinks i'm something that i'm i don't know what to do when i get back or how i'm even going to survive the first day. i want people to leave me alone but i know they won't.. anyone have advise? i really need it.. ime getting terrible anxiety from me thinking about all this stuff

Why do farmer's kill animals in a mean way, don't farmer's have feeling's?

[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.