You are dropping your friend back home after a night at the movies. From the car, she turns on the indoor lights in her home using an app on her phone. How is your friend able to do this? a. She has a home network with smart home devices. b. She dialed into her home modem through the app and sent a command through the router. c. She has installed switches that interact with the installed app on her phone. d. She uses a hub at her home that she connects to through the app.