Analog signals are continuous and can take on this range of values.

• A. Infinite
• B. Finite
• C. Discrete
• D. Boolean

Answer: (A)

Analog signals vary continuously in both time and amplitude, so they can take any value within their range without steps. That means there are infinitely many possible values the signal can assume at any moment. In contrast, discrete or digital signals change in steps and have a finite or countable set of levels, and Boolean signals use only two levels. In practice, measurement tools have finite precision, but conceptually an analog signal offers an unbroken, infinite range of values.