Final answer:
The best consonant for testing nasal emission among the given options is the plosive /p/ sound in 'Pass'. 'Pass' requires pressure build-up that can reveal nasal emission when pronounced. Option c is the correct answer.
Step-by-step explanation:
The question aims to identify which of the listed words is most useful for testing nasal emission. Nasal emission can occur when the velopharyngeal mechanism doesn't close properly, allowing air to escape through the nose. Sound testing for this would involve a consonant that requires pressure build-up in the oral cavity and a subsequent release that can be distinctly heard if nasal emission occurs.
Among the options provided, the best consonants for testing nasal emission are:
Shoe - contains /sh/ sound, not ideal
Cheap - contains /ch/ sound, potential but not the best
Pass - contains /p/ sound, which is a plosive and good for testing
Judge - contains /dʒ/ sound, not ideal
Bush - contains /sh/ sound, not ideal
The plosive sound /p/ in 'Pass' makes it the most suitable word among the given options to test for nasal emission, as it requires a significant amount of pressure build-up and closure at the lips, which can highlight any unintended nasal emission.
In summary, the correct option for the given question is:
c. Pass