From tech troubles to travel tips, IDNLearn.com has answers to all your questions. Discover reliable answers to your questions with our extensive database of expert knowledge.

9. The author's primary purpose is to
A) entertain readers with fascinating anecdotes about Henry
Ford and Alfred Sloan.

B) persuade readers to take their car buying more seriously.

C) explain important changes in American industry at the beginning of the twentieth
century

D) criticize the marketing methods used in the first half of the twentieth century, as
illustrated by Ford's and Sloan's methods.