Please use excel to solve this problem,thanks

1. (18 Points) You have just finished your undergraduate degree and you have two career options: Option 1: Accepting a job offer with the starting salary of $6,000 per month (paid at the end of the month). You will work in this company for 35 years. Option 2: Choosing a graduate program which will cost you $30,000 per year for the next two years (paid at the beginning of each year). Following the graduate school, you can get a job that offers the initial salary of $7,200 per month (first one paid at the end of month 25). You will work in this company for 33 years. (6 Points) If the annual discount rate is 6%, which career option is more lucrative for you? b. (6 Points) At what annual tuition will you be indifferent between these two career options? c. (6 Points) If the lower NPV option comes with a signing bonus (paid at the beginning of the month you start working), at what signing bonus will you be indifferent