Question: Which Canal was constructed during World War II, Middlesex Canal or Cape May Canal?
Context: The Type C5 ship is a United States Maritime Administration (MARAD) designation for World War II breakbulk cargo and later a container ship for containerization shipments.  The first type C5 class ship was a class of ships constructed and produced in the United States during World War II.  The World War II C5 class ship was dry bulk cargo ship built by Bethlehem Steel in Sparrows Point, Maryland.  Bethlehem Steel built 8 ship in this bulk cargo class and four orders were canceled.  The C5 class ship has a DWT of 24,250 and was 560 feet long.  The C5 was mainly used as iron ore carriers.  The C5 was needed to replace other ships that sank during WW2.  First in her class was the SS "Venore", USMC #1982, delivered on 20 July 1945.  Type C5 class ship designed to fill the need to move iron ore from Santa Cruz, Chile, to Sparrows Point, Md., through the Panama Canal, a round-trip trip 8700 nautical miles. The Middlesex Canal was a 27-mile (44-kilometer) barge canal connecting the Merrimack River with the port of Boston.  When operational it was 30 feet (9.1 m) wide, and 3 feet (0.9 m) deep, with 20 locks, each 80 feet (24 m) long and between 10 and 11 feet (3.0 and 3.4 m) wide.  It also had 8 aqueducts. The Cape May Canal is a 2.9-nautical mile (3.3 mi; 5.4 km) waterway connecting Cape May Harbor to the Delaware Bay, at the southern tip of Cape May County, New Jersey.  There is a long history of unfulfilled plans for a canal across Cape May.  The canal was finally constructed by the United States Army Corps of Engineers during World War II to provide a protected route to avoid German U-boats operating off Cape May Point and to become part of the Intracoastal Waterway.  The canal was dredged as a wartime emergency measure in 1942 and was the final link in a protected waterway intended to allow coastal shipping to travel along the coast with a greatly reduced risk of attack from German submarines. The Canal de la Bruche is a canal in eastern France that originally connected Soultz-les-Bains, near Molsheim, to the city of Strasbourg.  It was built in 1682 by the famous military engineer Vauban, principally to transport sandstone from the quarries of Soultz for use in the construction of the fortifications of Strasbourg.  The last commercial load was carried in 1939 and the canal formally closed in 1957, after bridges damaged during World War II were rebuilt with insufficient headroom for navigation. USS "Cape May County" (LST-521) was an "LST-491"-class tank landing ship built for the United States Navy during World War II.  Named for Cape May County, New Jersey, she was the only U.S. Naval vessel to bear the name. The Contra Costa Canal is a 47 mi aqueduct in the U.S. state of California.  Its construction began in 1937, with delayed completion until 1948 due to World War II shortages in labor and materials.  A portion of the canal's right of way has been developed as the Contra Costa Canal Regional Trail, a biking and walking trail, and is managed by the East Bay Regional Park District. The history of Panama during World War II begins in 1939.  Due to the American-controlled Panama Canal cutting across the center of the country, Panama was of major strategic importance to the Allied war effort, as well as the most important strategic location in Latin America during World War II.  It provided an invaluable link between the Atlantic and Pacific Oceans that was vital to both commerce and the defense of the Western Hemisphere.  Therefore, the defense of the Canal Zone was the United States' chief concern in the American Theater.  Panama never received Lend-Lease assistance, but in return for the rights to build military infrastructure within Panamanian territory, the United States undertook large-scale public works projects, which did much to modernize the country and boost the economy. Scusset Beach State Reservation is a state-operated, public recreation area located in the town of Sandwich in Barnstable County, Massachusetts, at the east end of the Cape Cod Canal on land formerly part of Sagamore Hill Military Reservation.  In addition to its beach and campgrounds, prominent features of the park include Sagamore Hill, a one-time Native American meeting ground and site of World War II coastal fortifications, and a 3000 ft stone jetty that separates the canal and beach.  Unlike most of Sandwich, this section of the town is on the mainland side of the Cape Cod Canal.  The state park is managed by the Massachusetts Department of Conservation and Recreation under a lease agreement with the U.S. Army Corps of Engineers. Naval Air Station Wildwood was a United States Navy airport located in Lower Township, New Jersey, United States, about four miles (6 km) northwest of the central business district of Wildwood, a city in Cape May County, New Jersey, United States.  Former Hangar #1 now contains the Naval Air Station Wildwood Aviation Museum, whose collection focuses on World War II, and is located at Cape May County Airport, which replaced the Naval Air Station. Route 162 is an unsigned 0.70 mi long state highway in Lower Township, New Jersey, United States.  The highway's designation consists entirely of a bridge on Seashore Road (County Route 626), which is known as Relocated Seashore Road.  The southern terminus of the highway is an intersection with County Routes 641 and 626 in Lower Township.  After crossing the Cape May Canal, Route 162 terminates at an intersection with County Routes 603 and 626 in Lower Township.  Route 162 and County Route 626 date back to the 1850s, when local businessmen and county financial Richard Holmes put together the Cape May Turnpike.  The turnpike was chartered in 1854, but construction did not begin until 1857, with completion in April of the next year.  The turnpike however, caused a lot of controversy, and struggled to live.  For many years, railroads were proposed, becoming possible competition for Holmes, who did not appreciate the idea.  The railroad was constructed in 1863, just nine years after the charter of the turnpike syndicate.
Answer: Cape May Canal