Question

what contributed to the 146 deaths caused by the triangle shirtwaist factory fire?

a. the large percentage of us - born factory workers

b. regular safety inspections of working conditions

c. the large percentage of factory workers who were immigrants

d. unsafe working conditions, including locked doors

Explanation:

The Triangle Shirtwaist Factory Fire was a tragic event caused by unsafe working conditions like locked doors which prevented workers from escaping the fire. Regular safety inspections would have likely prevented it, and the nationality of workers (whether US - born or immigrants) was not a cause. Unsafe conditions were the main contributor.

Answer:

D. Unsafe working conditions, including locked doors