A. voting rights could not be denied based on race.
B. voting rights could not be denied based on gender.
C. poll taxes became illegal and unconstitutional.
D. literacy tests became illegal and unconstitutional.
The fifteenth amendment states that "The right of citizens of the United States to vote shall not be denied or abridged by the United States or by any State on account of <em>race</em>, <em>color</em>, or <em>previous condition of servitude</em>."
There was no mention of gender, so voting for women hadn't been legalized until 1919, making B wrong.
The legislative branch is separated into the Senate and the House of Representatives. The other two branches are judicial and executive.
You need three sodium ions to balance the charge of one phosphate ion.