Final answer:
The two main components of blood are cells and plasma, So, the correct answer is option b.
Step-by-step explanation:
The two main components of blood are cells and plasma. Within the cellular component, there are erythrocytes (red blood cells), which are responsible for carrying oxygen to the cells and removing carbon dioxide due to the presence of hemoglobin. There are also leukocytes (white blood cells), which play a key role in the immune response and defense mechanisms of our body against pathogens.
Additionally, platelets are cell fragments that are essential for blood clotting and preventing blood loss following an injury. On the other hand, plasma is the liquid component of blood that not only acts as a medium for the cellular components but also carries hormones, nutrients, waste products, and contains clotting factors.
So, the correct answer is option b.