The two correct answers are; The invention of the cotton gin and westward expansion.
Further Explanation:
The cotton gin helped to take the seeds out of the cotton, but it increased the need for plantation owners to have more slaves. Since the work was done faster with the gin, they needed more slaves to keep up the work. This caused political debates to abolish slavery, but it still took a long time to get slavery abolished.
The Westward expansion also increased the need for slaves. With so many people leaving the East coast, they needed slaves to help families cook, wash, and do many other things. This also got the political debates started and in the right direction, but it would still not end slavery altogether.
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"The right to control who used the canal" is the right among the choices given in the question that the <span>U.S. retained when it gave the Panama Canal away. The correct option among all the options that are given in the question is the third option or option "C". I hope that this is the answer that has helped you.</span>
By the early 1920s, Chaplin was making his own films with actors Mary Pickford and Douglas Fairbanks due to the establishment of Chaplin Studios and United Artists in 1919. Having control of his own films lead to classics such as 'The Kid', 'The Gold Rush', 'City Lights', 'Modern Times' and 'The Great Dictator'.