An auto shop wants to determine if there are differences in mean prices among three of its main suppliers: Mid-America, Ecklers, and Corvette Central. They randomly selected a sample of 30 frequently ordered parts. Now, they want to conduct a statistical analysis to compare the mean prices. Which of the following options is the most appropriate method for this analysis?

A) One-way ANOVA
B) T-test
C) Chi-square test
D) Regression analysis