Read the following context and choose the best option to answer the question.
Context: The firemen evacuated us , I put Baby in her cat box and we sat outside , she was terrified with all the commotion and I did my best to comfort her , though I was terrified too . There was ambulances and cops everywhere . After the fire was sorted out the fireman said the flats not safe yet , and they was gon na check it for us when Sean gets out of hospital , and we must find a place to stay .
Question: What was the cause of the emergency ?
Options: 
- None of the above choices .
 - The gas leak made the house explode .
 - The earthquake shook the house really good .
 - The man set fire to the house .


The man set fire to the house .