Which statement is true?

• A. Metal sheets for the USS Constitution, Fulton's first steamboat, and the roof of the Old State House in Boston were all produced in Revere's copper-rolling mill.
• B. World War I decreased the need for skilled workers in the sheet-metal trade.
• C. In colonial America, a master was required to provide food, lodging, clothing, and wages to the apprentice.
• D. In the 1980s, sheet-metal workers' knowledge of plumbing systems allowed them to move into indoor-air quality (IAQ) technician positions.

Answer: (A)

The important idea here is how early sheet-metal work supported iconic American projects through materials like copper. Paul Revere built one of the era’s key copper-rolling operations in Boston, turning copper into ready-for-use sheets. Those sheets were widely used in shipbuilding and architectural roofing, so it’s well documented that copper sheets from Revere’s mill clad parts of ships and buildings of the time.

Specifically, copper sheets produced in Revere’s rolling mill were used for the USS Constitution, for Fulton's first steamboat, and for the copper roofing of the Old State House in Boston. This shows the practical reach of sheet-metal production in the early United States—from protecting hulls against marine growth to covering roofs with durable copper.

The other statements don’t align as well with historical facts. WWI actually increased demand for skilled metal trades due to wartime production. In colonial America, apprentices typically received room and board and training; wages were not a standard part of the arrangement. And while sheet-metal workers have relevant HVAC and ductwork knowledge, moving into IAQ technician roles in the 1980s wasn’t a defining, universal shift for the trade.