Explanation :
The methods of transfer of heat as as follows :
- Conduction
- Convection
- insulation
- Radiation
When we are ironing clothes, the primary method of heat transfer is as conduction. This is because when we starts ironing, we make a direct contact of the cloth and the iron.
It is direct method of heat flow from one body to another.
Hence, the correct option is (A) " conduction ".
