1.Marketing's role has changed over time, moving from the simple trade era (production) to today's marketing company era. Describe each era and using course concepts, identify a company that operated/operates in each era and analyze their activities and behaviour during that era. A different company should be chosen for each era. Use eras as determined by the textbook or credible online resources (slight variations on naming to be expected). What era do you believe might be next and why/when?