Phoneme

Say which of the following groups of phonemes contains one which is not an English phoneme.

That sound does not exist in the language as a separate phoneme.

The sound exists in the language only as an allophone of the phoneme /t/.

In this language, the phoneme /b/ is pronounced [p] when it occurs at the end of a word.

The two phones, which initially were allophones of a single phoneme, became distinct phonemes as a result of these sound changes.

The voiced retroflex flap appears as a phoneme in Bengali.

It is crucial for the phoneme structure of Finnish — traditionally /d/ has not been included in the Finnish phonotax, but it fulfils the criteria of a phoneme (Karlsson, 1983: 66-7).