Which one of the following types of cells lack nucleus in humans ?

Options

A. RBC
B. Neutrophils
C. Eosinophils
D. Erthrocytes

Explanation

To solve the question "Which one of the following types of cells lack nucleus in humans?", we can follow these steps:

### Step 1: Understand the Types of Cells Mentioned
We need to identify the types of cells listed in the question. The options given are:
- Red Blood Cells (RBCs)
- Neutrophils
- Eosinophils
- Monocytes

### Step 2: Identify the Characteristics of Each Cell Type
Next, we should analyze each cell type to determine whether they contain a nucleus or not:
- **Red Blood Cells (RBCs)**: These cells are known to lack a nucleus in humans. This adaptation allows them to carry more hemoglobin and thus transport more oxygen.
- **Neutrophils**: These are a type of white blood cell that contain a nucleus.
- **Eosinophils**: These are also white blood cells and contain a nucleus.
- **Monocytes**: These are another type of white blood cell that also possess a nucleus.

### Step 3: Conclusion
From our analysis, we can conclude that the only type of cell among the options that lacks a nucleus in humans is the **Red Blood Cells (RBCs)**.

### Final Answer
The correct answer is **Red Blood Cells (RBCs)**.

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