Read the following pairs: Group of words: I. Decayed with usually a very bad or disgusting smell; II. Humorous in a clever and often ironic way; III. In a state of tremulous excitement One-word substitution: I. Putrid; II. Wry; III. Aflutter Identify the pairs wherein the one-word substitution is correctly stated.

Pair I: 'Putrid' correctly means decaying or rotting and emitting a foul smell. Pair II: 'Wry' correctly describes something using or expressing dry, especially mocking, humor in a clever and often ironic way. Pair III: 'Aflutter' correctly means in a state of tremulous excitement or nervous agitation. All three one-word substitutions are correctly matched with their definitions. Therefore, the correct answer is I, II and III.