For Which of the Following Claims Is It Most Important

For which of the following claims is it most important to provide research support?

A) Every employee at TRD, Inc., should learn to speak at least basic Japanese.
B) Ridgeway Auto's economy cars are not as boring as the economy models of other brands.
C) Last year, profits in the shoe manufacturing sector increased by 5 percent.
D) Our bakery makes the tastiest breads on the market.
E) The sale of bottled water should be banned.