No matter what the technology is, but generally the more crops we produce, the lower the prices are. However we can observe from a few years kind of a new phenomenon: there's a bigger demand for some of the food products, so we're producing more but the prices are getting higher too.
Answer:
A. The shogunate asserted military control when called to put down a peasant revolt.
The force between them is such that like charges repel and opposite charges attract. For example, two positive charges brought near each other will be pushed away from each other. On the other hand, one positive charge and one negative charge brought near each other will be pulled towards each other.