During a scientific experiment the temperature of a container decreased by $35.7\degree$ C at a constant rate over $8\frac{1}{2}$ hours.

What value represents the change in the temperature of the container each hour?

A $-8.9\degree$ C

B $-4.4\degree$ C

C $-4.2\degree$ C

D $4.2\degree$ C
CORRECT ANSWERS ONLY PLEASE WILL GIVE BRAINLIST

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