Final answer:
The assertion that the confederate monuments were aimed at celebrating the authority of white Texans is best supported by the fact that approximately half of the monuments were erected between 1900 and 1940, a time period when Jim Crow laws were in full effect.
Step-by-step explanation:
The option that best supports the assertion that these monuments were aimed at celebrating the authority of white Texans after the civil war ended, is 'a. approximately half of the monuments were erected between 1900 and 1940.' During this time period, Jim Crow laws were in full effect, and erecting confederate monuments could have been used as a means to assert white dominance and authority.
Most of these monuments were not erected immediately after the civil war (which ended in 1865), nor during the civil rights era (generally considered to have been between 1954 and 1968). This implies they were not reactions to the immediate aftermath of the war, nor to the push for African American rights. Instead, the timing suggests they may have been erected during times of codified white supremacy, as a means of further establishing this authority.
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