When you turn on an iron, electrical energy is transformed into what energy?

Thermal energy

Explanation: The iron works by heating a piece of metal or teflon with electrical energy.

Then,  when you turn on an iron, the electrical energy is used to heat the iron, then the energy is beign transformed into "heat", this type of energy (the one related with the temperature) is called "thermal energy"

i am pretty sure it is c because when people are closer together, they cannot move as freely. picture being in a mostly full elevator, for instance. the people are right next to you, and you can barely move.