Choose the appropriate example of the Adverb of Frequency:

"He rarely misses his appointments." "She laughs loudly." "I wrote a letter." "They sang a song."

"He rarely misses his appointments."

The correct answer is: ☀ "He rarely misses his appointments." Explanation: The adverb "rarely" specifies how often the action of missing appointments occurs, indicating that it happens infrequently or seldom. Therefore, "rarely" functions as an adverb of frequency in this sentence.