Answer:
1. Escape religious prosecution
2. Economic opportunity/sustainability
3. Indentured Servitude
Step-by-step explanation:
1. Religious prosecution was popular in Europe as a result of King Henry the 8th (maybe I'm not sure which king Henry it was) founding the Anglican Church of England (or Church of England). Many now faced prosecution such as puritans, calvinists, and catholics. Thus, the colonies served as a save-haven for other religious groups but later proved to be the opposite as Puritans inhabited one of the strictest colonies, the Massachusetts bay colony which was heavy on proving oneself to God as worthy.
2. As a result of taxes put on the usage of and to farm in England, some (but not many) came to the colonies in order to sustain their families by farming without tax.
3. This one is not as strong as point 1 or 2 but servants from England would come to the colonies to work for others (not slavery yet) in exchange for food, clothing, and shelter. They would later be able to go back home if they wish after a certain number of years passed.