7) Black inventor whose discoveries allow people to enjoy preserved meats such as hot dogs, ham, bacon, and smoked sausage.

a. Frederick Jones  b. Otis Boykin  c. Madame C. J. Walker  d. Norbert Rillieux  e. Joseph Lee  f. W. Lincoln Hawkins  g. Lloyd Augustus Hall  h. Garrett Morgan  i. David Crosthwait  j. Elijah McCoy