Answer:
they needed an acurate calender to tell the date
Explanation:
Weather can change from hour-to-hour and day-to-day, and can differ based on atmospheric changes and humidity, among other factors. Climate is the average of an area's weather over a period of time - a pattern that typically occurs over many years.
In 1971, Canadian Prime Minister Pierre Elliot Trudeau and the federal government adopted this policy to recognize the diversity of its people and would accept their differences no matter what race or ethnicity you are. With this knowledge now we can see that the answer would be B. "Build acceptance of cultural diversity." I hope this helps :)