Discussion

Explanation:

Option 4 is too definite ‘…necessary and sufficient condition…’ which cannot be concluded from the passage.
In the last paragraph, the author says of the experiment, “Treiman and Zudowski showed that 4 and 5 year old children found the onset-rime version of the same/different task significantly easier than the version based on phonemes. Only the 6-year-olds, who had been learning to read for about a year, were able to perform both versions of the tasks with an equal level of success.” Therefore, option 2 supports the hypothesis that onset-rime awareness occurs earlier (easier for 4-5 year olds) than phoneme awareness (six year olds).
Hence, the correct answer is option 2.

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