All of the following were key strategic developments that contributed to British General ...

All of the following were key strategic developments that contributed to British General Cornwallis's surrender at Yorktown to General Washington on October 17, 1781 EXCEPT
 
  A) General Washington's successful march of his own army south from New York to Yorktown at surprising speed to engage Cornwallis's troops.
  B) the French navy blockade the York River that cut off Cornwallis from resupply.
  C) the successful military stand made by Daniel Morgan, a commanding officer of the patriots' southern campaign, against the British at Cowpens in South Carolina in January 1781.
  D) Cornwallis's decision to pursue further full-scale battles in the Carolinas after the British defeat at Cowpens.