Many Americans were concerned about the growth of the Ku Klux Klan How does Document A providé
evidence of this?

The text shows evidence of concern over the growth of the KKK when it states that from two-thirds to three-fourths of 16-30-year-old white males have joined this group.
The KKK was a violent group that advocated supremacist ideas and pursued social eugenics. The group's violence was something that undermined the stabilization of black society and provoked terror in communities for racist reasons.
The advance of this group was worrying, particularly in the southern states where resentment over the ban on slavery attracted most young men to join the KKK.
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