The army is committed to developing and maintaining a professional workplace in which all individuals are treated with dignity and respect. this includes a work environment free of harassment. harassment includes all of the following,

Except Requirement to attend annual training events

Because simply it's part of the activities to show their commitment to the Jobs. The one that includes harassment are something like :

- Name calling ( that's not in a friendly mood)
- Sexual Harassment
- Being told to do something that's not a part of their job or get fired 

It would be b. distress