Q. A drug delivery agent helps in making the drug to
1.Treat multiple diseases
2.Be easily soluble in water
3.Act specifically on the desired target
4.Be effective at relatively lower concentrations Select the correct answer by using the code below:

• (A) 1, 2, 3 and 4
• (B) 1, 3 and 4 only
• (C) 2, 3 and 4 only
• (D) 1 and 4 only