What Was the Significance of Gideon V

What was the significance of Gideon v. Wainwright (1963) ?

A) Any defendant accused of a felony is entitled to a lawyer and must be supplied one if the defendant cannot afford to do so.
B) Legal counsel must be supplied to all defendants accused of a capital crime.
C) Prosecutors may use the products of illegal searches if other evidence unrelated to the illegal evidence would have justified a search warrant.
D) Police who have probable cause to search an automobile for illegal substances may also search personal possessions.
E) Once detained by authorities, all persons have to be informed of their rights to remain silent and to consult with an attorney.