A. prove the legitimacy of dynastic rule is your answer
Mandate of Heaven was the saying that there should only be one ruler, which the gods approve of. This would rule out B) and D). Because the ruler is approved by the gods, it means that all should obey the appointed king.
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A) Grant favored defensive tactics while Lee relied on relentless offensive to win battles
Your teacher may have told you something specific that they want you to write here. If not, I would say it would be the glorification or demonization of any historical figure. Worshiping a certain figure by giving them constant praise and attempting to excuse every one of their immoralities, or showing a hatred of a certain figure by emphasizing their immoralities and attempting to belittle or invalidate their good deeds and accomplishments.
**assassinated on Friday, November 22, 1963, at 12:30 p.m.
** while riding in a presidential motorcade through Dealey Plaza.
** The driver of the president’s Lincoln limousine, with its top off, raced to nearby Parkland Memorial Hospital, but after being shot in the neck and head, Kennedy was pronounced dead at 1 p.m.
** was 46 years old
**