Refer to information in table 1. A cell phone company wants to devise pricing based on potential buyers' differences in preferences. Differences in preferences are shown by the group elasticities in column 2. Marginal cost (MC) of cell phone is $200. Table 1: cell phone elasticities by consumer groups and marginal costs Consumer groups Price Price elasticity of demand MC Working adults -1.25 $200 High income households -1.35 $200 Senior citizens Students -1.7 $200 -2 $200 If the base (undiscounted) price of the cell phone is $1000, based on the information in table 1 calculate the cell phone price for each group using mark-up pricing rule. Consumer groups Price Working adults S 1,001.0 High income households S 1000.0 Senior citizens S 400.7 Students $ 771 Consumer groups Price Working adults S 1,000.0 High income households S 771.4 Senior citizens S 485.7 Students S 400.0 Consumer groups Price Working adults 1,001.0 High income households S 1001.0 Senior citizens S 401.7 Students S 770 Consumer groups Price Working adults S 1,001.0 High income households S 1000.0 Senior citizens S 401.7 Students S 770