Final answer:
The example of onomatopoeia from the choices given is 'Buzz', as it is a word that mimics the sound it represents, similar to the humming sound made by insects.
Step-by-step explanation:
The question poses a challenge to identify an example of onomatopoeia from a passage in Roald Dahl's novel 'Boy'. Onomatopoeia refers to words that phonetically imitate the sound they describe. Considering the options provided, the correct choice is: (a) Buzz This word represents the humming or buzzing sound made by insects, and it is one of the clear instances where the word's pronunciation resembles the noise associated with the object or action being described. In the passages from Roald Dahl's writings, sounds such as rustling, murmuring, humming, and whispering can invoke the sense of onomatopoeia as they imitate the sounds they refer to. However, 'buzz' is the explicit word given in the choices that is a direct example of onomatopoeia.