What event MOST directly relates to Chinese citizens’ boycott of U.S. goods?

A.
defeat of the Boxer Rebellion

B.
onset of the Sino-Japanese War

C.
cancellation of the J. P. Morgan loan

D.
mediation of the Treaty of Portsmouth

C. cancellation of the J. P. Morgan loan

The event that most directly relates to Chinese citizens' boycott of U.S. goods is the onset of the Sino-Japanese War.