D) Detachment, replacement, excitement
The set of words in Choice D are the only words that have a suffix (-ment). A suffix is an affix that is added to the end of a word or stem and that serves to form a new word or that functions as an inflectional ending, such as -ness in "gentleness," -ing in "walking," -s in "sits," and -ment in "detachment." The suffix -ment refers to an action, process, or act of a specified kind, i.e., detachment is the act of detaching. The suffix (-ment) forms nouns ("detachment," "replacement," "excitement") by attaching to verbs ("detach," "replace," "excite").