which description below best fits what happened at appomattox courthouse?
question 2 options:

a major victory for the union as it gives them control of the mississippi river, and shows the union can fight with few supplies

marked the end of wooden vessels and introduced more durable, metal-protected ships (ironclads)

lee and grant agree to end the war, and the confederacy surrendered

led by william tecumseh sherman, as was meant to devastate the south and make them completely useless

Fourth-grade teacher julie farraday finds that her students are very eager to be . they seem to care about being productive and involved in the class, as well as in their school. farraday’s students are best described at which stage of psychosocial development?

According to ohrp, a problem is an “unanticipated problem” when it meets which of the following criteria: unexpected, related or possibly related to the research, suggests that the research does not put the subjects or others at greater riskunexpected, related or possible related to the research, suggests the research puts subjects or others at greater riskunexpected, unrelated to the research but still occurring with a subject, suggests the research puts others at greater riskexpected, related or possible related to the research, suggests the research puts others at greater risk

"six months ago, several of molly's friends joined the trimtime fitness center. each of them participated in trimtime's weight-reduction and fitness regimen. all reported substantial weight reduction, and all are visibly slimmer. molly is convinced. she joins trimtime and enrolls in the program, hoping and expecting to see the same results. she is especially delighted to learn that trimtime had adjusted its program to make it even more effective in a shorter period of time." what is the feature in question/attribute of interest in this argument?