Who did Nazi (beside Jews) believe were a biological threat to the purity of their German-Aryan race?

Which of the following is the main reason early new england had villages rather than cities? 1. the area did not have ports for trade. 2. not many people lived in new england at the time. 3. new england did not have the natural resources to support cities. 4. the settlers set up new england with villages for religious reasons.