Not sure how to do this type of problem, any explanation of the steps will help me understand

Question 8. The BingoD stock is traded for $61 now and will be either $64 or $54 two months later. The interest rate is zero. A $1 dividend is expected, and its ex-dividend date is in one month. The value of a two-month 60-strike European put option on the stock should be closest to (a) 3.60 dollars. (b) 2.40 dollars. (c 1.80 dollars. (d) 4.20 dollars