the intended audience/the audience members

[kadioguy]

[From a TOEIC test]

77. Who is the intended audience for this talk?

78. What are the audience members asked to do?

[Source]
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(1) “Audience” and “audience members”, are they interchangeable?

(2) Why did the writer use them, rather than just the same one, for the two questions?

 

[Rover_KE]

You seem to be asking if the following are acceptable:

77. Who is the intended audience members for this talk?

78. What are the audience asked to do?

I hope you can see that they're not interchangeable without rephrasing the sentences.

 

[kadioguy]

77. Who are the intended audience members for this talk?

78. What is the audience asked to do?

How about this? Do they mean the same as the original?

 

[Rover_KE]

Yes.