The share value of K&K, a pharmaceutical company, is currently trading at $150 but is expected, 180 days from today, to rise to $250 or to decline to $50, depending on FDA approval of its new vaccine. Assuming the risk-free interest rate over the coming 180-day period is 1/8th of 1%, can you value a European call option written on a share of K&Ks stock if the option carries an exercise price of $15? What is the hedge ratio?