What was an early pennsylvania policy encouraging settlement?

The consequence of the relatively expensive standard of living in rural Pennsylvania and the neighboring central colonies within 1720 and 1770 was that, the per capita expenditure of shipped goods from England was higher than doubled.

increases in demand are shown by a shift to the right in the demand curve. this could be caused by a number of factors, including a rise in income, a rise in the price of a substitute or a fall in the price of a complement.

which the answer is:

b