Read the excerpt from “household robots are here, but where are they going? ” but fairly soon it will be routine for homeowners to bark out “turn the lights down 20 percent” and have it happen. eventually, a robot-controlled smart home will “understand where a person is in the home and know what they want” without even being asked, says michael wolf, the founder of nextmarket insights. he estimates that the market for owner-installed smart homes will rise from about $1.3 billion today to about $7.8 billion by 2019. which option describes how the central idea is developed in the excerpt? household robots are here, but where are they going? the excerpt conveys the idea that house prices will rise as social robots become more common in the home. the excerpt explains how the current functions of social robots are best applied to basic tasks within the home. the excerpt conveys the idea that basic functions in a smart home are best performed by a social robot and not its human residents. the excerpt explains how different types of social robots function differently in the home, based on the commands given.