An Ideal Transformer Is Used to Either Increase or Decrease

An ideal transformer is used to either increase or decrease the voltage in an AC circuit. When the output voltage is greater than the input voltage of a transformer then

A) the power output depends on the ratio of turns in the primary and secondary.
B) the power output is the same as the power input.
C) the power output is larger than the power input.
D) the power output is smaller than the power input.