8. Gamma: Look at the following chart. Based only on this information, which underlying equity is the riskiest (highest 0+)? UNDERLYING STRIKE OPTION PRICE TYPE DELTA A $139.20 139 call .51 .09 B $137.47 137 call .06 C $137.75 138 put - 50 .06 D $138.35 138 call .54 .10 OPTION GAMMA .54