زبان مادری "من" فارسی است، و اینطور رای دادم. زبان مادری ایرانیان دیگر می تواند فارسی نباشد.  زبان مشترک "ما" (و زبان رسمی)  فارسی است. می توان دلیل آورد که چرا فارسی و نه مثلاً لری، ولی "همینی که هست" هم بجای خود منطقی دارد.

MY (me) mother language is Farsi, OUR (all Iranians) mother language are ALL OF THE ABOVE!
 

I wrote "our" since when the poll is done it will show the demographic of all our mother tounges. It is not meant to make people to choose a specific language. I was interested to see the demography of the people in Iroon.com

So We are different and that is how it should be.

Hi choghok. With your explanation, I went for "Farsi" as this is the lnaguage I was thought and my parents wanted me to speak, but as you and others clarified, Iranians speak many languages.