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Who invented chillers?

a) Louis Pasteur
b) Charles Chamberland
c) Willis Carrier
d) Clarence Birdseye

Answer: c
Explanation: The pasteurization process was developed by Louis Pasteur. Charles Chamberland developed the first pressure steam sterilizer. Willis Carrier invented the chillers. Clarence Birdseye developed processes for freezing fish based on quick freezing.

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