Based on the context and the answer, generate a question. 

Context: Five of those hours were spent . He was worried . Pacing , he fingered the stir stick as he considered all his options . The buzzer to his apartment rang , and he considered ignoring it , but then remembered he 'd ordered a pizza .

Answer:

He ordered a pizza because he was stressed and wanted to eat something to calm his mind .



Why did he order a pizza previously ?