The main speaker at the dedication ceremony was .

A. Oscar Cintas

B. David Wills

C. Edward Everett

D. Abraham Lincoln

Explanation:

I pick C but i could be D but yeah and its not even A or B

answer; (d) one tectonic plate plunges beneath another; (most common,convergent boundaries)

the secretary of state, appointed by the president with the advice and consent of the senate, is the president's chief foreign affairs adviser. the secretary carries out the president's foreign policies through the state department and the foreign service of the united states.