A whole sugar cube is added and the water is stirred. A whole sugar cube is added and the water is not stirred. A crushed sugar cube is added and the water is stirred. A crushed sugar cube is added and the water is not stirred.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Under which conditions would a sugar cube dissolve most quickly when placed in a liter of water at room temperature?
Possibilities:
- A whole sugar cube is added and the water is stirred.
- A whole sugar cube is added and the water is not stirred.
- A crushed sugar cube is added and the water is stirred.
- A crushed sugar cube is added and the water is not stirred.

A crushed sugar cube is added and the water is stirred.