In addition to exalting Reagan, Thatcher's additional purpose in this eulogy is to 1. applaud the United States for its support of Great Britain
2. caution against a Cold War resurgence with Russia
3. reinforce the alliance between America and Great Britain
4. criticize the public for its initial lack of faith in Reagan's abilities

The key purpose that Thatcher provides in the given eulogy would be:

3). reinforce the alliance between America and Great Britain.

Thus, option 3 is the correct answer.

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The correct answer is 3. In addition to exalting Reagan, Thatcher's additional purpose in this eulogy is to  reinforce the alliance between America and Great Britain.

Explanation:

In his speech, Prime Minister Thatcher initially extols President Reagan's political and ideological characteristics, as well as his personality. Then, it refers to the period in which both were leaders of their nations, the Cold War, and the way in which both nations collaborated in the leadership of the Western Bloc in the face of the Soviet threat, and the ways in which these threats were neutralized thanks to policies and strategies taken together. Thus, in addition, it reaffirms the sense of unity and camaraderie between both nations, reinforcing the bond between the United States and Great Britain.

"silence" is the answer to this riddle.

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