On May 18, 2022, the price of BP stock was $36.00. The interest rate was 3.5% per year. What was the implicit stock volatility (if any) implied by the prices below for call options expiring October 20,2023? Draw a graph of your results. If you think you have found convergence, make sure that the implicit volatility is equal (to a tenth of a percent) in two consecutive iterations. Strike Last Price 30 6.80 32 5.10 34 3.95 35 3.37 36 2.82 38 2.00 40 1.18 42 0.70