Question: An experiment was performed at sea-level. 400 mL of water was put in 4 different-shaped containers and placed on hot plates with 4 different temperature settings as shown below. Beaker - 110°C Petri dish - 95°C Erlenmeyer flask - 60°C Round bottom bowl - 45°C Which characteristic of water remained the same in each container?

  Options: 
 A. the shape of the water
 B. the rate of evaporation
 C. the boiling point of water
 D. the amount of steam released per minute
Answer: C