Answer:
last one is the correct and most suitable option.
Hope it helps!!!
The 3 and 2 to the right of the components are subscriptions.
By scientific question, it really just means create a normal question. The example would be:
How will gas be affected if the temperature in an enclosed container is to be changed?
There are mannnyyy ways how to write a question for this, you just have to make sure you write what you are changing and how you are changing it, oh and make it sound smart haha.
I'm not sure but i would say C.storing the heat energy.
