Which of the following components is absent in lymph?

The correct answer is Option (3) → RBC

Lymph is the fluid that seeps out of the blood capillaries into the spaces between cells and is then collected by the lymph vessels. Only what can pass through the thin capillary walls reaches it: the watery, plasma-like fluid with its dissolved salts, and white cells, mainly lymphocytes, which can squeeze through. The red blood cells are too large to pass, so lymph has no RBCs, which is why it is colourless.