Which phrase best defines a redox reaction?(1 point)

Responses

a reaction in which the number of oxygen atoms is reduced
a reaction in which the number of oxygen atoms is reduced

a reaction in which oxygen combines with different atoms
a reaction in which oxygen combines with different atoms

a reaction in which electrons are released from the system
a reaction in which electrons are released from the system

a reaction in which electrons are transferred between different atoms

a reaction in which electrons are transferred between different atoms