The longest cell in the human body is

Options

A. nerve cell
B. muscle cell
C. liver cell
D. kidney cell.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the longest cell in the human body. We need to identify which type of cell holds this title among the options provided.

2. **Analyzing the Options**:
- **Option 1: Nerve Cell**: Nerve cells, also known as neurons, can be very long. Some neurons can extend up to 1 meter in length, especially those that run from the spinal cord to the extremities.
- **Option 2: Muscle Cell**: Muscle cells are long and tubular, but they do not reach the lengths of nerve cells. They are important for movement but are not the longest.
- **Option 3: Liver Cell**: Liver cells (hepatocytes) are involved in metabolism and detoxification but are not particularly long compared to nerve cells.
...