What significant labor issue was being protested during the Labor Day celebrations in early 20th-century Chicago?

What significant labor issue was being protested during the Labor Day celebrations in early 20th-century Chicago?

A High unemployment rates
B Child labor laws
C Excessive working hours

Fact: In the early 20th century, labor movements were focused on addressing issues like excessive working hours, with many workers enduring shifts as long as 14 hours, prompting rallies for change.

Correct Answer: Excessive working hours