Read this excerpt from the letter of a World War I soldier. We are in the trenches just now. In fact we seem to spend about three times as much time in as we do out. . . .

What is the most likely reason that the soldiers were spending so much more time in the trenches?

A. to protect themselves from enemy fire and poison gas
B. to create dangerous areas called no-man’s-land
C. to avoid the spread of diseases
D. to use machine guns more easily

30 pts

Astudy that involves interviews of adults is eligible for expedited review. the researcher wants to add an adolescent population (aged 12 to 17) to the study and has designed a parental permission and assent process. no additional changes are planned. which of the following statements about review of the revised protocol is accurate? the research would only be eligible for expedited review if the adolescents are capable of understanding the same consent forms used for the adult population. the research would only be eligible for expedited review if the adolescents have been declared to be emancipated minors. the new research would need full review by a convened irb because children are a protected population. unless the nature of the questions would raise the level of risk to > minimal for adolescents, the research would still qualify for expedited review.