In the lymph, you would typically find:
- White blood cells: These are a critical component of the immune system and are present in lymph.
- Antibiotics: While antibiotics are not naturally found in lymph, they can be present if introduced into the body as medication.
The other options:
- Red blood cells: These are generally not found in lymph; they are primarily found in the blood.
- Platelets: Similar to red blood cells, platelets are also primarily found in blood and are not typically present in lymph.
So, the correct option from your list is white blood cells.