Flowing water making a rock smooth A carrot becoming soft when cooked Sugar mixed into tea making the tea sweet Butter changing into liquid in a warm pan
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which is an example of melting?
Possibilities:
- Flowing water making a rock smooth
- A carrot becoming soft when cooked
- Sugar mixed into tea making the tea sweet
- Butter changing into liquid in a warm pan

Butter changing into liquid in a warm pan