sales (business)

Watch the following brief video on Closing the Sale: 9 Common Objections at https://www.youtube.com/watch?v=xaY-YpePuio

Some trainers and sales experts think that closing is the most important stage of the sales process.  Do you feel this way?  What is an example where you have observed a great closing or a missed opportunity when a closing should have been made.  Which of the 9 common objections do you find most challenging and how would you prepare to overcome this objection if a customer used this when you are trying to sell a product or service to them?

I need one page assignment about these questions. 

I need this assignment in 8 hours. Time is really important