Once the judge nodded, a wave of relief swept the courtroom affirmatively
Step-by-step explanation:
Among the given options the best one which suits the sentence is affirmatively. Here adverb is employed adverbs are the verbs which are used to describe the verbs.
The adverb describes the way in which the action takes place and most often it answers the question how? In this sentence the question is in which way the judge nodded his head and it answers the question affirmatively. Hence affirmatively is the correct option from all the above