Which best identifies why the rusting of an iron nail in the presence of water and oxygen is an oxidation-reduction reaction

In redox reactions, the electrons are transferred.

Explanation:

Redox reaction is defined as the reaction in which oxidation and reduction reaction occur simultaneously.

Oxidation reaction is defined as the chemical reaction in which an atom looses its electrons. The oxidation number of the atom gets increased during this reaction.

Reduction reaction is defined as the chemical reaction in which an atom gains electrons. The oxidation number of the atom gets reduced during this reaction.

Electrons are transferred from one atom to another in this type of reaction.

The chemical reaction for rusting of iron follows the equation:

Oxidation half reaction:  

Reduction half reaction:  

From the above reactions, the electrons get transferred from iron to oxygen. Thus, it is an redox reaction.

an honest friend. a friend who cares about me, and wont use me. a friend that i can trust. not someone who is fake

mark this brainliest lol i need one more.

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current