Given the following data on stocks and options, S=$15,K=$18,r=5%,T=0.5,D=0 calculate a) the upper and lower bounds for a European call upper bound: (Enter numeric value only, no dollar sign or comma. Keep 2 decimal places) lower bound: (Enter numeric value only, no dollar sign or comma. Keep 2 decimal places) b) the upper and lower bounds for a European put upper bound: (Enter numeric value only, no dollar sign or comma. Keep 2 decimal places) lower bound: (Enter numeric value only, no dollar sign or comma. Keep 2 decimal places)