In cold conditions it is important to keep your hands and feet warm to prevent damage. A. Hair
B. Bone
C. Tissue
D. Blood

(I need the answer to this please help me out)

You've already said you figured it out, but might as well answer for the points and anyone else that needs help. C, Tissue damage, is what you need to prevent.

Explanation:

Frostbite is a serious condition that can lead to the loss of limbs. Frostbite can be prevented by keep your hands and feet warm.

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