The correct answer is "It provides comic relief at a tense moment". Using certain expressions into your writing is an effective way to make your work more creative. Used correctly, this kind of expressions can amplify messages in a way that draws readers in and helps to awaken their senses.
Answer : the schwa
The schwa is the term given to the symbol that indicates the indeterminate vowel sound. It is also considered as the unstressed central vowel in the International Phonetic Alphabet (IPA). The schwa is also one of the most commonly misunderstood sound in the English alphabet and are known as the lazy vowels. A lot may have heard about it but only a few knows that it is the most common unaccented syllables or words in the English dialect.