What enabled Pennsylvania to grow and succeed so quickly compared to other American colonies?

What enabled Pennsylvania to grow and succeed so quickly compared to other American colonies?
 
  a. Conservative land policies attracted a large influx of immigrants.
  b. Religious tolerance drew immigrants from overseas as well as nearby colonies that were less tolerant.
  c. Founder William Penn widely advertised the opportunities available in his new colony, especially recruiting skilled craftsmen.
  d. Quakers proved shrewd and successful in business generally and avoided conflict with native peoples.
  e. It enabled the cultivation of a cash crop.