“Any person haled into court, who is too poor to hire a lawyer, cannot be assured a fair trial unless counsel is provided for him.”—Mr. Justice Hugo Black in Gideon v. Wainwright This quote shows that, because of Gideon v. Wainwright,

suspects who cannot afford lawyers have to prepare their own defenses
government must provide a lawyer to a suspect who cannot pay for one
suspects who cannot afford lawyers do not have to go through a trial
government must provide a lawyer only to a suspect who can pay

2, the government must provide a lawyer to a suspect who cannot pay for one .

Explanation:

First of all, that is the current law in the US. Second, the quote tells us that ANYONE without counsel cannot be assured a fair trial. he doesn't specifically mention class or money. Last, he says that counsel must be provided for the person on trial. This means without pay. The defendant must have a lawyer to ensure a fair trial, even if they can't afford one. Therefore, it's the government's job to provide one.

im gonna take a guess and say gas vans and chambers

the following key ideas correctly express the key sentence.

restate key idea: most people can learn to swim in ten short lessons.

restate key idea: the majority of water-accident victims require mouth-to-mouth breathing.

restate key idea: an empty, tightly closed gallon jug will support a tired swimmer.  

restate key idea: first aid is to prevent accidents as well as assist in rescue.

explanation: the key idea needs to have the same topic as the key sentence (drowning and safety).