A"grassroots" campaign refers to one that a) relies popular support of the masses. b) relies on farmers for political support. c) avoids courting the votes of the lower classes. d) focuses its attention on states in the great plains.

The answer is A) relies popular support of the masses.  Grassroots marketing, sometimes known as guerrilla marketing, starts from the ground up. Instead of launching a message you hope will appeal to many people, you target your efforts to a small group and hope the group will spread your message to a much larger audience.

it was important in history as the site of the ancient city of yin

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the eop relieves the president of the duty of serving as commander in chief. the also eop reduces the president's ability to appoint staff and advisers.

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