If you know please help

A. freeze at the same temperature at which it melts, depending on whether the temperature is rising or falling.

Explanation:

Option A is the correct.

Freezing and melting are two changes that occur in the state of matter. Freezing is known to be the change that occurs when a substance (liquid) changes to solid when there is a decrease in temperature. While melting is known to be the opposite and it refers to the change that occurs when a solid changes to liquid as a result of increase in temperature.

When substances freeze, they do so in the same temperature as they melt. This is true because both freezing and melting actually describe similar transition of matter. So, it depends whether temperature is rising or whether it is falling.

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the wires in the toaster turning red and the toast crisping and turning brown