ANSWER:
Most of the US is located in the 'Westerlies zone' of prevailing winds. 
Step-by-step explanation:
- The prevailing winds or trade winds are the winds on the 'surface of the earth' that blow from a particular direction. 
 
- Westerlies are the trade winds that blow from the 'west direction'. These winds are more dominant in the mid-latitudes and blow from 'west to east'. 
 
- The westerlies also lead to the 'development of strong ocean currents' in the northern as well as southern hemisphere.