Read the following context and choose the best option to answer the question.
Context: He seemed a bit at aw as he said " these cars do nt give any problems " . For now he is switching out relays , and said that if that did not work the manual says to replace the ABS ( he said it comes with the pump and all ) . I am truly concerned as I have only had this used ( 90,000 miles ) 04 Prius for 3 weeks and it was running great until " Boom " . Does any one have any idea what could be the possible cause of this problem ?
Question: What may have caused your prius to go " boom ? "
Options: 
- Parts might need to be replaced .
 - He sold me a faulty Prius .
 - None of the above choices .
 - The parts I replaced are n't working .


Parts might need to be replaced .