Which of these is a complex sentence?

Immigrants who came to work in factories lived in urban neighborhoods.

"Old" immigrants often settled on farms, but most "new" ones lived in cities.

In the past, many immigrants had come from northern and western Europe.

Immigrants working long hours and facing crowded living conditions.

Read the following passages. passage a: we who lived in concentration camps can remember the men who walked through the huts comforting others, giving away their last piece of bread. they may have been few in number, but they offer sufficient proof that everything can be taken from a man but one thing: the last of human freedoms - to choose one's attitude in any given set of circumstances - to choose one's own way. passage b: for as long as political life has existed in germany, there has never been a movement such as ours. created from nothing and embracing people of all regions, all classes, all professions, all heritages. they can oppress us; they can even kill us. but we will never surrender. passage c: who am i? they also tell me/ i bore the days of misfortune/ equably, smilingly, proudly, /like one accustomed to win. passage d: a democratic government did nothing to stem the flow of high inflation and unemployment that seemed to grow worse week by week. people grew desperate for change. which passage offers the truest belief of nazism in germany? passage b passage d passage a passage c

How were the okanogan highlands formed? a. by subduction, which caused huge folds in earths surface b. as a result of retreating glaciers carving great valleys into the earth c. when molten rock from under the earth approached the surface d. when the collision of volcanic island chains and ocean rocks formed new earth

How much do you think members of congress should be paid in comparison with other professions