twice as high as the first sample's slightly higher than the first sample's half as high as the first sample's the same as the first sample's
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Joyce put 200 milliliters of water in a beaker, put a thermometer in it, and heated it until it started to boil. She recorded a temperature of 100°C when it started to boil. She repeated the process with 400 milliliters of water. What would be the temperature when the second sample started to boil?
Possibilities:
- twice as high as the first sample's
- slightly higher than the first sample's
- half as high as the first sample's
- the same as the first sample's

the same as the first sample's