Answer:
Option B: It withdrew from Open Door agreements with China.
Explanation:
The Open Door policy was a statement of principles initiated by the United States in 1899 and 1900. It called for protection of equal privileges for all countries trading with China and for the support of Chinese territorial and administrative integrity.
President Polk wanted California but knew Mexico would not agree to sell it and his only avenue was to start a war (knowing the US would win it).
Much like today, the key entertainment for Elizabethan London was: sports, visual entertainment (plays, for the time), and gambling.
Tennis, in particular, became a particularly popular sport during the Elizabethan age while artists like Shakespeare came to prominence with plays that the common masses enjoyed.