In 1917, communist revolutionaries overthrew the russian
government and established the soviet union. while they
fought on the same side during world war ii, the soviet
union and western democracies like the united states
became rivals in the mid-20th century. this conflict
became known as the cold war.
which statement would best fit into this historical narrative?

"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?