you should never use a jack without a __________ underneath it.\nbox\nstand\ncinder block\nfloor pan\n4 of 5

you should never use a jack without a __________ underneath it.\nbox\nstand\ncinder block\nfloor pan\n4 of 5
Answer
Brief Explanations:
When using a jack for vehicle - lifting or other purposes, a stand is used to provide additional support and safety in case the jack fails. A box, cinder block, or floor pan are not the standard and safe items to use underneath a jack.
Answer:
B. Stand