Object M is placed in a water bath and its temperature is recorded every 2 minutes, as shown below:
Time (min): 0 2 4 6 8
T_M (°C): 70 60 54 50 48
During which time interval was the magnitude of the rate of energy transfer from Object M to the water bath greatest?
a) 2–4min
b) 4–6min
c) 0–2min
d) 0–4min