According to Vernon,which of the Following Factors Obviates the Need

According to Vernon,which of the following factors obviates the need for pioneering U.S.firms to look for low-cost production sites in other countries?

A) There is less uncertainty and risks inherent in introducing new products.
B) The demand for most new products tends to be based mainly on price.
C) U.S.labor costs were relatively low compared to global standards.
D) Firms can charge relatively high prices for new products.