Why did Susan B. Anthony believe she had the right to vote?

The Fifteenth Amendment didn't mention gender.

The Fifteenth Amendment said that women could vote.

New York was a border state.

The Fifteenth Amendment was unconstitutional.

i think its a

She didn't want only men to vote alone.

Explanation:

Anthony argued that she had the right to vote because of the recently adopted Fourteenth Amendment to the U. S. Constitution, part of which reads, "No State shall make or enforce any law which shall abridge the privileges or immunities of citizens of the United States.

I think it's b because it says she had the right to vote because of the recently adopted fourteenth amendment to the U. S.