Final answer:
The four capitalization errors in the sentence have been corrected.
Step-by-step explanation:
The four capitalization errors in the given sentence are:
- The word "jr." should be capitalized as "Jr."
- The word "alabama" should be capitalized as "Alabama"
- The word "winter" should be capitalized as "Winter"
- The word "south" should be capitalized as "South"
The corrected sentence would be:
Martin Luther King, Jr., helped organize a famous bus boycott in Alabama during the Winter of 1955 that paved the way for civil rights victories in the South.
Learn more about Capitalization in English