plzz answer all three question and for last two excel question could you plzz provide cell reference. Thankyou

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On August 1, 2023, PTR Ltd. purchased a call option from DDR Investments Corporation. The option gave PTR the right to buy 10,000 shares in a third company, MGL Ltd., at a price of $20 per share. On the day PTR purchased the option, MGL shares were trading at $20 each. PTR paid $700 for the options. On August 31, 2023, the MGL shares were trading at $21.75 each, and the options for MGL shares were trading at $18,000. On September 15 , PTR settled the options in ash when the MGL shares were trading at $23 and the options were trading at $30,000. (a) Explain how the purchase of the option reduces PTR's risk. 1. Cell Referencing Using Excel to Account for Options PROBLEM On January 1, 2023, Xu Corporation granted options to executives. Each option entities the holder to purchase one share of Xu's common shares at any time after lanuary 1, 2025. The required service period is two years. The options' fair value as calculated using an options pricing model. Information concerning the options is provided here