The problem asks how many bits are in a nibble. The options are 1 bit, 2 bits, 3 bits, and 4 bits.

1. Problem Description

The problem asks how many bits are in a nibble. The options are 1 bit, 2 bits, 3 bits, and 4 bits.

2. Solution Steps

The definition of a nibble in computer science is that it is equal to half of a byte. A byte is equal to 8 bits.

Therefore, a nibble is $\frac{1}{2} * 8 = 4$ bits.

3. Final Answer

The final answer is 4 bits.