After the following sentence, a list of possible interpretations is given. Choose the interpretation that is…

Analyze the question: The sentence uses the idiom "too clever by half". We need the option that best captures its meaning.

Explain the concept: "Too ___ by half" is a British English idiom meaning excessively so, in a way that is irritating or off-putting. For example, "He's too smart by half" suggests someone who shows off their intelligence or is annoyingly clever, often to the point of being a bit sly or over-smart. The word "half" does not mean "partly". It stresses that the quality is overdone.

Step-by-step solution:

1. Option A: displays his cleverness in an annoying way. This matches the idiom. The cleverness is excessive and irritating to others.
2. Option B: is not as clever as he thinks. The idiom can sometimes hint at overconfidence, but it does not say he lacks cleverness. It says he is overly clever in a way that annoys. This is not the primary meaning.
3. Option C: pleases everyone he meets. This is the opposite of the negative tone of the idiom.
4. Option D: hides how clever he really is. This contradicts the idiom, since being "too clever" implies the cleverness is on show.

Answer: Option A.

Tip: For idioms like "too ___ by half", remember that the phrase usually has a negative tone. It means "excessively, to an irritating degree". Eliminate options that are positive or that suggest hiding the trait.