In a healthy individual, the total leucocyte count per cubic millimeter of blood under normal conditions is

Options

A. A)6000-8000
B. B)7000-9000
C. C)10000-12000
D. D)11000-13000

Answer

To solve the question regarding the normal total leucocyte count in a healthy individual, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for the normal total leucocyte (white blood cell) count per cubic millimeter of blood in a healthy individual.

2. **Identify the Options**: The options provided are:
- A) 6000 to 8000
- B) 7000 to 9000
- C) 10,000 to 12,000
- D) 11,000 to 13,000

3. **Recall Normal Values**: It is important to recall the normal range of leucocyte counts in healthy individuals. The normal range for total leucocyte count is typically between 6000 to 8000 cells per cubic millimeter of blood.

4. **Evaluate the Options**:
- Option A (6000 to 8000) matches the normal range.
- Option B (7000 to 9000) exceeds the upper limit of the normal range.
- Option C (10,000 to 12,000) is significantly higher than the normal range.
- Option D (11,000 to 13,000) is also much higher than the normal range.

5. **Select the Correct Answer**: Based on the evaluation, the correct answer is Option A (6000 to 8000).

### Final Answer:
The total leucocyte count per cubic millimeter of blood in a healthy individual under normal conditions is **6000 to 8000**.

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