IMMUNOLOGY

Detailed explanation-1: -Answer and Explanation: The correct answer is (b): Lymph flows through sinuses in a slow manner. The lymph fluid enters a lymph node through afferent lymphatic vessels and moves through the subcapsular sinus. From there, it enters and meanders through a number of small sinuses.

Detailed explanation-2: -Lymph is a fluid that leaks out of capillaries into spaces between cells. As the lymph accumulates between cells, it diffuses into tiny lymphatic vessels. The lymph then moves through the lymphatic system from smaller to larger vessels. It finally drains back into the bloodstream in the chest.