For this reason..
Usually they use this phrase to explain why something had happened in this case it could be referred to the solution
Since this is during the period of the Soviet Union and communism, Kennedy is asking the people to come together and defend freedom.
Answer:
Symptoms: Laziness. Skipping classes. Failing to study hard for tests or to write coherent papers. Disinterest in school-related academics and activities.
Diagnosis: Senioritis.
Prescription: Graduation.
Explanation:
Answer: B), Author’s publication history
Explanation: It cannot be C) because the country an Author is born it does not affect their validity, and it cannot be D) because it is possible for a source to be cited many times but still be invalid.