When subjects were treated with a drug, their systolic blood pressure readings (in mm Hg) were measured before and after the drug was taken. Results are given in the table below. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Using a 0.05 significance level, is there sufficient evidence to support the claim that the drug is effective in lowering systolic blood pressure? Before 195 200 205 183 164 210 155 1/5 GGL 167 179 189 155 176 145 154 After 144 148 179 156 162 163 177 147 In this example, Jo is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the systolic blood pressure reading before the drug was taken minus the reading after the drug was taken. What are the null and alternative hypotheses for the hypothesis test? O A. Ho Ha # 0 OB. Ho: Ha # 0 H1 : Hd = 0 H1 Hd > 0 GPU C O C. Ho: Hd = 0 OD. Ho: Ha = 0 H1: Hd > 0 H1 Ha