My first Mock Interview

Today was my first mock interview at CL..I was tense in the beginning.Moreover i cud not find bus for Satya Niketan. Perfect disastrous start of the day.Anyhow i managed to get a bus.I was on the way when i got call from CL i thought that my interview is ruined before i actually start to give it. Well but when i reached there condition was better. Well about the interview it was OK but the panel told me that i need to focus on "Why MBA" question. To be frank i too considered that i was not clear on the topic.I need to prepare hard for that because that is the main question that the panel will ask me everytime i go to an interview" Why after Marine to MBA"? i better get this prepared very well..lets see what happens next.