Claw hammer different types of tools and materials​

This hammer is constructed from a forged steel head with a hole for fixing a handle. One end is made to fit the hole in the hammer head, then a steel wedge is driven into the wood which forces it to expand and secure the hammer head to the handle. Other handle materials include glass fiber and even carbon fiber.

Explanation:

c. explains words’ origins and variations.

the answer is slaves

douglas was a slave who turned into a statesman and he refused to celebrate the 4th of july until all slaves were emancipated or set free.