Difference between action of DEC and Ivermectin in a case of scrotal filariasis is:

• A. DEC acts on both microfilariae and adults while Ivermectin acts on adults only
• B. DEC acts on adults and Ivermectin on microfilariae
• C. DEC acts more effectively on microfilariae than Ivermectin
• D. DEC acts only on micro filariae than Ivermectin acts only on adults.