Examiner is so mean lol

sir, the recent article on the black scholes option pricing model came up in a different style. The present value of the underlying investment was 0 and exercise price was 35 million. Calculators cant solve that then cuz the calculator says math error if u input 0 as ln 0/35 it only accepts 0.01. i just wrote assume 0.01 is the same as 0. but then di was 13.76 then in other to proceed i made another assumption that assume di is 0.03 then i solved. apart from that was a fair exam.