Answer:
c
Explanation:
The Commercial Revolution was a trade war between European countries following the colonization of the New World.
The answer is A: Jerusalem.
"The following month, Germany sunk four more U.S. merchant ships. ... On April 6, 1917, the United States entered World War I. Get a firsthand look at how a new breed of weapons like WMDs, submarines, armored tanks and air attacks changed modern warfare forever in WWI: The First Modern War"
Im not absolutley positive but I believe its the second and last