The correct response is:
The committee claimed that U.S. industries made excessive profits at the expense of American lives during World War I.
The Nye Committee, officially known as the Special Committee on Investigation of the Munitions Industry, investigated the financial interests of companies involved in armaments during World War I and concluded that those industries profited significantly from the war at the cost of countless lives. This led to a stronger desire among many Americans for isolationism during the 1930s, as they were wary of becoming entangled in foreign conflicts again.