Karen is the next employee scheduled to attend three weeks of training in another state. her employer knows the training will disrupt karen’s family life. the employer arranges cell phone service and internet access for karen to communicate daily with her family while she is away. other coworkers tell karen how useful the training has been, and that the time away goes quickly. by supporting karen, the coworkers and the employer are improving karen’s to learn.
a: ability
b: willingness
c: participation
d: determination
e: self-esteem

"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?