D. On 1/1/17, the stockholders adopted a stock option plan for the executives whereby each would receive rights to purchase up to 18,000 shares of common stock at $40 per share. The par value is $10 per shar. In January 2017, option were granted to each of five executives to purchase 18,000 shares.(A total of 90,000 options were issued -5*18,000) The options were non-transferable and the executive had to remain an employee of the company to exercise the option. it is assumed that the options were for services performed equally in 2017 and 2018. The black-scholes option pricing model determones total compensation expense to be $1,900,000. The options vested on 1/1/2019 and will expire on 1/1/2020 Prepare the journal entry required at the end of 2017 and 2018 for the stock options. On 2/1/19, four executives exercised their options when the stock was trading at $48 per share. The fith executive chose not to exercise his options and let them expire Prepare the required journal entry for when the option are exercised and for when the remaining options expire