…… supply oxygen to the blood.

A) Leukocytes

B) Erythrocyte

C) Lymphocytes

D) None of these

The erythrocyte, commonly known as a red blood cell (or RBC). The primary function of erythrocytes is to pick up oxygen from the lungs and transport it to the body’s tissues, and to pick up carbon dioxide at the tissues and transport it to the lungs. 

Gulf Cooperation Council has how many members?

A) 6

B) 7

C) 8

D) None of these

The Gulf Cooperation Council (GCC) is a political and economic union of Arab states bordering the Gulf. It was established in 1981 and its 6 members are the United Arab Emirates, Saudi Arabia, Qatar, Oman, Kuwait and Bahrain.