Manuel was having trouble opening a new glass jar of pickles. His father told Manuel to hold the metal lid of the jar under running hot water for a few seconds, then try again. Then the lid opened easily.

Manuel was having trouble opening a new glass jar of pickles. His father told Manuel to hold the metal lid of the jar under running hot water for a few seconds, then try again. Then the lid opened easily. What is the most likely reason Manuel’s father suggested using hot water to loosen the lid?

A. Glass contracts when it is heated.
B. Metals expand when they are heated.
C. Metals are easier to grip when they are warm.
D. Hot water reduces friction between metal and glass.

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