Please help answer! somebody answered these all incorrect.

Use the option quote information shown here to answer the questions that follow. The stock is currently selling for $30. 0. Suppose you buy 13 contracts of the February 31 call option. How much will you pay, ignoring commissions? Answer is complete but not entirely correct. Suppose you buy 13 contracts of the February 31 call option. Macrosoft stock is selling for $33 per share on the expiration date. b-1. How much is your options investment worth? b.2. What if the terminal, stock price is $32 ? Suppose you buy 13 contracts of the August 31 put option. 91. What is your maximum gain? c-2. On the expiration date. Macrosoft is selling for $26 per share. How much is your options investment worth? c3. On the expiration date. Macrospft is selling for $26 per share. What is your net gain? Suppose you sell 13 of the August 31 put contracts