Below is a chart showing the calls and puts on Boeing Aircraft Co. (BA) which expire on June 21, 2019. The chart was compiled on May 13, 2019.

In the questions that follow, use the "Last" column to answer questions which involve option pricing, assuming that Boeing closed at $340 on May 13.

Calls Puts Last Net Bid Ask Vol Strike Last Net Bid 14.1 Ask -8.225 Vol 13.85 14.25 209 BA 340.000 13.46 6.51 13.25 11.6 13.45 -7.3 1077 11.4 11.55 87 BA 345.000 15.9 7.375 15.7 9.2 -6.574 15.95 339 9.15 9.3 654 BA 350.000 18.4 8 18.45 18.65 7.28 307 -5.645 7.2 7.4 227 BA 355.000 21.45 8.9 5.65 21.4 21.8 132 -4.8 5.6 5.75 401 BA 360.000 25.6 10.55 4.33 24.75 25.2 -3.895 199 4.25 4.4 220 BA 365.000 29.44 11.59 28.4 28.95 3.22 79 -3.155 3.2 3.3 1550 BA 370.000 32.65 11.625 32.45 32.95 2.5 -2.325 132 2.37 2.45 608 BA 375.000 37.78 13.28 36.65 1.8 37.25 -1.775 27 1.7 1.82 591 BA 380.000 42.14 13.865 41.05 41.7 50