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IBM shares currently sell for $154. Some of its 3-month European options, at varying strike prices, currently sell for the following premiums. Description Maturity Strike Premium IBM 135 call 3 months 135 18.65 IBM 155 call 3 months 155 4.10 IBM 170 call 3 months 170 0.44 IBM 135 put 3 months 135 1.38 IBM 155 put 3 months 155 6.60 IBM 170 put 3 months 170 18.74 In order to construct a bull spread using the 155 and 170 strike options which of the following trades is appropriate? O Buy the 155 put, buy the 170 call Sell the 155 put, buy the 170 call Buy the 155 put, sell the 170 put Buy the 170 put, sell the 155 put