Question

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how can viewers interact with mé ta - harmonie ii?
jean tinguely, méta - harmonie ii. 1979. mobile scrap - iron sculpture with musical instruments and other objects. three parts; iron, sheet metal, brass, plastic, rubber, wood, leather, glass, electric motor. 149 1/2\ x 271 1/2\ x 63\.
viewers can climb on the sculpture.
viewers can press a button to hear sounds.
viewers activate a foot pedal to start the rotors.
viewers can move parts of the sculpture around.

Explanation:

There is no information provided about viewers climbing on the sculpture, moving parts around, or activating a foot - pedal. Since it is a sculpture with musical instruments, it is reasonable to assume that viewers can press a button to hear sounds.

Answer:

B. Viewers can press a button to hear sounds.