Properties of an electric transformer

The above is a schematic diagram of an electric transformer, where the primary AC voltage is 220 V220\text{ V} and the secondary coil is connected with an electric heating instrument. The secondary voltage and current intensity are 110 V110\text{ V} and 8 A,8\text{ A}, respectively. Which of the following statements is correct?

There is no energy loss in this electric transformer.

a)a) The current intensity flowing in the primary winding is 4 A.4\text{ A}.
b)b) The number of turns in the secondary winding is twice as many as that in the primary winding.
c)c) The primary coil always transfers 880 W880\text{ W} of electric power to the secondary coil without reference to any heating instrument.

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