Which of the following statements are true regarding trade winds? 1. They constantly blow from tropical high pressure belt to equatorial low pressure belt. 2. They derive their name from the trade which was carried on with help of these winds in the medieval period. 3. They bring lot of rainfall to the equatorial low pressure belt. 4. They are deflected from their path due to the earth's rotation.

• A.  1 and 2 only    
• B.  2 and 3 only
• C.  2 and 4 only    
• D.  1 and 4 only