Answer:
Curtis's opinion that Dred Scott should be free because he lived in a free territory is based on legal arguments and interpretations. The evidence that best supports this opinion would be the statements that directly relate to the issue of slavery in the territories. Based on your provided options:
Option 5: "Acts of Congress as prohibited slavery and involuntary servitude within that part of the Territory of Wisconsin... were constitutional and valid laws."
This option directly supports Curtis's argument that slavery was prohibited in the territory where Dred Scott lived.
Option 4: "Does this legislation deprive him of his property without due process of law?"
While this option doesn't directly mention the territory's status, it addresses the issue of property rights and due process, which are important aspects of the Dred Scott case.
The other options do not provide as strong or direct support for Curtis's opinion in the context of Dred Scott's case in a free territory.
Step-by-step explanation: