You are Arun. Near the gate of your colony there is a motor mechanic's workshop . Many cars are parked outside on the pavement and even beyond . Repair work goes on. The surroundings have become filthy pedestrians are put to trouble. Arun decides to write a letter of complaint , of course , for wider audience/readership .
The correct closing of the letter should be :

Options

A. Your's faithfully
B. Yours faithfully
C. Yours truly
D. Your's truly