We did n't make as much money ( probably partially since we closed up at noon - oh , and probably since someone took our signs down Friday night - once we got them back up ( around 9:30 ) things started to pick up ) but we got rid of a lot , and only had one ( very full ) vanload to take to goodwill . I call that a success ! Now if I can just keep myself from accumulating that much unneccessary stuff again ! ! !

Available options: a). The customers thought the business was closed. b). The customers could n't find the new location. c). The customers only come because they like the signs. d). The customers were angry that the signs were down.
Answer the following question: Why did having the signs down cause the speaker to make less money ?
a).