Which scenario could be represented by this graph?

a. Randy turns the oven off. After heating his food for 10 minutes, he turns the oven off. The a-axis represents time; the y-axis represents the oven temperature.

b. Randy places a thermometer inside a beaker of water and brings it to a boil. When the water begins boiling, he turns off the heat and waits until the water returns to room temperature. The x-axis represents time; the y-axis represents the temperature reading.

c. Randy turns off the oven. After the oven returns to room temperature, he waits 10 minutes and then turns the oven back on. The x-axis represents time; the y-axis represents the oven temperature

d. Randy place is a thermometer inside a beaker of water and brings it to a boil. the x-axis represents time; the y-axis represents the temperature reading