Final answer:
The white blood cells produced in the bone marrow of long bones are responsible for the body's defense against infection by attacking and destroying foreign pathogens. the correct option is b. White blood cells .
Step-by-step explanation:
The white blood cells produced in the trabecular area of long bones are responsible for fighting infection.
White blood cells serve a crucial role in the immune response by defending the body against foreign bacteria, viruses, and other pathogens. Within white blood cells, different types such as phagocytes, neutrophils, and lymphocytes have specialized functions, from engulfing microorganisms to fighting infections caused by bacteria and viruses.
These cells originate from hematopoietic stem cells located in the bone marrow and are an essential component of the body's adaptive immune system. Despite the lower quantity of white blood cells compared to red blood cells in the blood, their impact on the immune system is substantial, particularly in the context of infection and inflammation.