Which one of the following sentences uses the comma or commas correctly?Najib breathed a long heavy sigh.

As oil prices rose during 2006, demand for alternative fuels increased. ethanol, one alternative feul, is made from corn. according to an article in the wall street journal the price of tortillas which are made from corn also rose during 2006. the price spike in tortillas is part of the ripple effect from the ethanol boom. draw demand and supply graph for corn market and use it to show the effect on this market of an increase demand for an ethanol. be sure to indicate the equilibrium price and quantity before and after the increase in demand for ethanol.

Arecent article in newsweek stated that 25 percent of students entering collage read below the 10th grade level. is this statement an fact or an opinion?

Which statement best paraphrase the first line in the prologue