Last year, food packages shrank as food makers, dealing with record high ingredient costs, struggled to maintain their profits. But the weakened economy has caused a slump in demand for ingredients like corn and oil, pushing those prices back down. With lower ingredient costs - and higher consumer demand for more value - some brands like Frito-Lay are shifting back to bigger packages, without raising prices.
The word rupture would best replace the word, "breach," because it has a similar definition to it. Also, plugging in the other answer choices wouldn't make sense, since they would't fit into the sentence.
