What was the purpose of the Transcontinental Railroad? (4 points) A. To help people transport goods over rivers and waterways

B. To connect the northern and southern borders of the United States

C. To help people transport goods to other nations, like Cuba

D. To connect the east and west coasts of the United States

"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?