Which phrase best contributes to a strong introduction by giving a brief background of Joan of Arc? Joan of Arc was a peasant girl who rose to lead the army of France
One of the most significant figures in European history
few women had her power and influence
helping to place King Charles VII on the throne

Which of the following guidelines should be followed if you have a large spill that is dangerous or beyond your ability to clean up? a) call emergency authorities b) try to keep it quiet so nobody panics c) if the material is flammable, get several buckets of water to dilute it with d) wipe up as much as you can with appropriate rags

Whether or not a given study has the possibility of causing harm to participants:

The health care system in is referred to as a singleminus−payer health care system, and is a system in which the government provides national health insurance to all residents.