What is lymphocytosis? What does this condi- tion generally indicate?

Explanation

### Step-by-Step Solution:

1. **Definition of Lymphocytosis**:
- Lymphocytosis is defined as a condition characterized by an increased number of lymphocytes in the blood. Lymphocytes are a type of white blood cell that plays a crucial role in the immune system.

2. **Function of Lymphocytes**:
- The primary function of lymphocytes is to produce antibodies. These antibodies are essential for the immune response, as they help to identify and neutralize pathogens like bacteria and viruses.

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