Who proposed amendments to protect slavery

the Corwin Amendment

Explanation:

Although the Corwin Amendment does not explicitly mention slavery, it was designed specifically to protect slavery from federal power. Congress proposed the Corwin Amendment on March 2, 1861. shortly before the outbreak of the American Civil War, but it was not ratified by the requisite number of states.

definitely a for sure. ill see and update if i get the answer

d. protection of an individual’s rights regardless of sex

b. acknowledgment of an individual’s rights regardless of sex

c. inclusion of individuals in the us congress regardless of sex