Which of the following statements describes the traveling conditions most immigrants endured when making the trip to the United States?

A) Most immigrants, along with their families members, navigated their own ships which they built.

B) Many immigrants traveled from Europe on freight trains to the United States.

C) Most immigrants traveled below the deck of ships in crowded, dirty spaces.

D) Immigrants traveled in large open spaces on the deck of the ship along with vacationers.

According to the federal regulations, which of the following studies meets the definition of research with human subjects? a study of twenty 4th grade classrooms in which researchers ask the schools to systematically vary the time of day reading is taught, and collect weekly assessments of reading comprehension for each child over a three-month period.the collection of data, by a playground designer hired by the superintendent of schools, about the physical dimensions of school playgrounds, presence of fencing, and the kinds of equipment currently provided.a feasibility study for implementing a year-round school program, focusing on economic issues such a facilities utilization and transportation costs.an analysis of aggregate data comparing statewide high school graduation rates provided by the state department of public instruction, using county tax information.