Which instrument has keys like a piano?

• A. Keyboard
• B. Chordophone
• C. Strings
• D. Instruments

Answer: (A)

Understanding how we play an instrument helps here: the defining feature is the control interface. A keyboard instrument uses a row of keys that you press to produce notes, and the piano is the classic example of that interface. So, when asked which instrument has keys like a piano, the best match is keyboard, because it describes the instrument that uses a keyboard layout to play, just like a piano does.

The other terms point to broader families or parts rather than the playing surface. Chordophone refers to instruments that produce sound from vibrating strings (like guitars and violins), which isn’t about having a keyboard. Strings denotes the actual string components, not the way you interact with the instrument. Instruments is simply a general category for sound-making devices and doesn’t specify a keyboard interface.