Thomas Edison:
a. invented the typewriter.
b. invented, among other things, a system for generating and distributing electricity.
c. was a governor of New Jersey.
d. was a railroad owner.
e. pioneered the use of the telephone.

What did this mean for dred scott? a.scott was not a citizen of the united states. b.scott was the property of the federal government. c.scott had no right to sue for his freedom in court. d.scott was considered the property of the slaveholding family.