Synonym Replacement In Context

Passage 1

According to U.S. Department of Agriculture reports, 95 percent of the sugar beets, 93 percent of the soy, 94 percent of the cotton, and 88 percent of the corn produced in the United States are genetically modified (GM) varieties. Since GM varieties are often mixed with ordinary varieties during shipping and storage, an estimated 75 percent of processed foods on American grocery store shelves contain some GM ingredients. However, although most Americans have consumed GM foods for several years, they know very little about them. Fully 70 percent of Americans are unaware that GM products are currently on supermarket shelves. One likely reason consumers remain unaware of the pervasiveness of GM foods is that United States law does not require these products to be labeled.

Passage 2

While promoting consumer choice through information was the goal of mandatory GM food labeling policies in the European Union, these policies have unintentionally resulted in the disappearance of labeled GM foods from grocery store shelves. This outcome stems from the controversy and consumer perceptions regarding GM foods in Europe. Consequently, European food processors and retailers have avoided using GM ingredients to reduce the risk of losing market share due to consumers' negative attitudes. In sharp contrast, the Food, Health and Consumer Products Manufacturers of Canada estimates that 60 to 70 percent of food products on North American grocery shelves contain GM ingredients.

Which of the following words could be substituted for 'unintentionally' in Passage 2 without substantially altering the meaning of the sentence?