Ineed on a r. a.c. e it restate the question, answer, cite evidence, explain. my son isn't clear what to do and forgot his book at home.

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Answer quickly! correct answers only! how did an agricultural surplus relate to expanded trade during the high middle ages? a)trade increased because surplus crops could be traded. b)trade decreased because surplus crops were needed to feed local populations. c)trade decreased because surplus crops led to an oversupply of grains that could not be sold. d)trade increased regionally but decreased globally because trade networks had shrunk.

Describe the cultural component "innovation." give two examples. give an example of the cultural component "cultural universals."

Brainliest to who answers! what will always cause a supply curve to shift to the left?