Final answer:
Bethlehem Steel's minimal production of steel for shells is related to the shell crisis during World War I, highlighting the political and industrial issues surrounding shell production.
Step-by-step explanation:
The subject being referred to in the question is History. In the context given, Bethlehem Steel's minimal production of steel for shells is related to the shell crisis that occurred during World War I. The British government blamed the army for not ordering enough shells, leading to an increase in shell output throughout the year. This historical event highlights the political and industrial issues surrounding shell production during the war.