Which two ideas are central in President Kennedy's inaugural address?
A. Government has an obligation to protect all its citizens.
Aggressive nations must relinquish their ability to destroy
other nations.
OB. A unified world is a goal worth pursuing. Political
ambitions must always be tempered with acquired wisdom.
C. Everyone has a common purpose for existence. History can
teach valuable lessons about coexistence on this planet.
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D. Freedom is a universal aspiration. Improving the earth is an
obligation all people must be willing to accept.

modal adverbs are used to modify specific verbs that consist of a linking verb (verb of being) and sometimes another verb. examples of modal verbs include can, could, may, might, must, shall, should, will and would.

modal auxiliary. an auxiliary verb characteristically used with other verbs to express mood, aspect, or tense. in english, the most common modal auxiliaries are can, could, may, might, must, ought, shall, should, will, and would. also called modal .

answer; /// i do believe the correct answer is (c) public education;

1. alliteration

2. wistful

b. legendary founder of thebes