What will be best answer, why you are suitable for this post, and why should select you for this post?

Sir, That is the good question you asked me , if you will give me opportiunity to work in your Company at this post i think that, by using my skills and knowledge i will play an important role in the upliftment of your company and i will prove it . i am quick learner and very honest with my work surely sir, one day you will feel proud for appointing me here.