Here is one way to answer 
the F1 Visa interview Questions – Why This University. Posted as comment by Cinmoy at F1 Visa refused – 214b in 2 minutes
For “why this university?” your answer should be based on the fact that whatever the university provides is unique and best and is not available in other universities in america.so include the following points:
- Coursework – give the name of 3 courses that your university provides (refer graduate catalog) and tell the visa officer that u need to do these courses and university provides rigorous and practical exposure in them
- Faculty and professors – give the name of 2 professors who have international reputation and recognition.
- Fees – most economical university and affordable tution fees for MIS course.
If the next question is why not do the same course in Nigeria?
- MIS is a unique course with a blend of management and technology course and such course is currently not available in Nigeria.
- coursework in US is practical oriented and will help me to learn a lot.
- US degree will provide me with lots of opportunities in Nigeria.
am about to head to the am hoping that with your tips I will make it.
TIPS BASED ON MY EXPERIENCE WITH F1 VISA INTERVIEW
I want to say a big thank you to this website it helped me a lot in my preparation.
1.Be well prepared with answers to all possible questions.This helped me a lot in my interview.
2.Be confident in your answers.
3.Trust God and remember to pray.
4.Speak clearly and do not use complex words.
5.Relax do not be nervous otherwise they will think you have something to hide.
5.
The third point..haha..seriously
God? Maybe God is gonna help you by asking the VO a favor 
Why would anyone come and help a guy like you Kishore ? Wish you get a rejection for US and all other countries you apply. I am not praying to GOD for this cause though !
@Glory: Well said. Our hardwork along with trust and prayer to GOD … !