Peter: Unlike in the past, most children’s stories nowadays don’t have clearly immoral characters in them. They should, though. Children need to learn the consequences of being bad.
Yoko: Children’s stories still tend to have clearly immoral characters in them, but now these characters tend not to be the sort that frighten children. Surely that’s an improvement.
Peter: Most children's stories nowadays don't have clearly immoral characters in them
Yoko: Children's stories still tend to have clearly immoral characters in them
=> Obvious disagreement here.
Peter and Yoko disagree over whether today’s children’s stories
Quote:
(A) should be less frightening than they are
Neither of them stated this (A) is out
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(B) tend to be less frightening than earlier children’s stories were
This is Yoko's statement. Peter's statement was not against this (B) is out.
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(C) differ significantly in overall quality from earlier children’s stories
They never discuss about quality (C) is out.
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(D) tend to have clearly immoral characters in them
As concluded above.
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(E) should help children learn the consequences of being bad
Yoko says nothing about this. (E) is out.
(D) is the answer.