What plan was adopted to make sure china could remain autonomous and fair trade would exist between nations?
1. the roosevelt corollary
2. the open door policy
3. the treaty of portsmouth
4. the fair trade act of 1904

Which of these marketing methods henry ford sell the model t to many people who had never before owned a car? a) offering free maintenance on cars for a full year b) airing television commercials with memorable slogans c) advertising with the new communication outlets such as radio d) offering many different colors and models for buyers to choose from