Final answer:
The specific method of Celia Walker Friedman's escape from the fire is not provided in the excerpts. The Triangle Shirtwaist Factory Fire severely limited escape routes due to locked doors and collapsed fire escapes.
Step-by-step explanation:
Celia Walker Friedman's method of escaping the fire is not detailed in the provided excerpts. However, the historical context of the Triangle Shirtwaist Factory Fire informs us that escape was nearly impossible due to the fact that many stairwell doors were locked and the fire escape collapsed. None of the provided options (running down the stairs, jumping down an elevator shaft, or not going to work that day) are supported by the information given. One excerpt mentions Mrs. Irene Salvos as an escapee, but there is no mention of Celia Walker Friedman's escape.
The Triangle Shirtwaist Factory Fire of 1911 was a pivotal event in U.S. labor history that highlighted inhumane working conditions and led to significant changes in labor laws and safety regulations. The fire claimed the lives of 146 workers, most of whom were young immigrant women, and sparked a public outcry for reform.