Question

At dinner you get your father's advice on whether you should take sociology or political science to meet a requirement. the next day when you see your father, you say, "i decided on poly sci." his understanding of your message is explained by

Answer 1

His understanding of your message is explained by "historical context".

When something must be comprehended or examined "historical context," it implies the verifiable conditions in which it was delivered especially influenced the work or in this case the decision - its subjects, its procedures, its message, and so on. Without a comprehension of the time, a full comprehension of the piece will be unimaginable.