What is one difference between primary and secondary sources? A.Secondary sources usually reflect signs of bias; primary sources
do not. B.Secondary sources are usually written documents; primary sources are not. C.Primary sources are usually eyewitness accounts; secondary sources are not. D.Primary sources usually include historical interpretation; secondary sources do not
"New factories in the U.S. offer higher
<span> wages for unskilled workers" is the best answer. Although these wages are still relatively low, they're higher than many immigrants would see back home. </span>