Concept:
- Contextual meaning questions ask for the word that fits the sense of the underlined word as used in that particular sentence.
- 'Bewitching' means charming or captivating in an almost magical way.
Step 1: Fix the meaning of 'bewitching' in the sentence
A 'bewitching' collection is one that is extremely charming and captures attention.
Step 2: Eliminate options with unrelated meaning
'Boastful' means bragging, 'malodorous' means bad smelling, neither fits a collection being described as attractive.
Step 3: Watch out for the close distractor
'Ephemeral' means short-lived, this actually matches 'fleeting' later in the sentence, not 'bewitching', so it is a planted distractor for the wrong underlined word.
Step 4: Pick the correct match for 'bewitching'
'Mesmerising' means captivating or hypnotic, which is exactly the sense of bewitching.
Final Answer: mesmerising