The September issue of a music journal will consistof exactly six articles, each by a different one of sixmusicologists—Ferraro, Gallegos, Herrera, Johnson, Lee,and Ostrow. The articles will appear sequentially, andtheir positions relative to one another in the issuemust conform to the following conditions:Ostrow's article immediately precedes Gallegos' article.Lee's article immediately precedes or else immediately.follows Ferraro's article.Herrtra's article appears earlier in the issue thanGallegos' article.Johnson's article is the first or else the second article.Which of the following lists the musicologists in an order in which their articles can appear in theissue?
　　　First　　　Second　　　　Third　　　　Fourth　　　　Fifth　　　　Sixth　　　

　　　　　　
Ferraro 　　Lee Herrera 　　Ostrow Gallegos 　　Johnson
Johnson 　　Ferraro Lee 　　Oslrow Herrera 　　Gallegos
Johnson 　　Herrrera Ferraro 　　Ostrow Gallegos 　　Lee
Johnson 　　Herrrera Lee 　　Ferraro Ostrow 　　Gallegos
Johnson 　　Ostrow Gallegos 　　Ferraro Lee 　　Herrera

————————————————————————
答案：(D)

If Lee's article is second, which of the following must
be true?
Ferraro's article is third
Gallegos' article is fifth
Herrera's article is third
Herrera's article is fifth
Ostrow's article is sixth

————————————————————————
答案：(A)

If Gallegos' article immediately precedes Ferraro's
article, then Herrera's article can be
second
third
fourth
fifth
sixth

————————————————————————
答案：(A)

If Ferraro's article immediately precedes Lee's article,
which of the following can be true?
Gallegos' article immediately precedes Ferraro's article.
Lee's article immediately precedes Gallegos' article.
Ostrow's article immediately precedes Ferraro's article.
Lee's article is second.
Lee's article is fifth.

————————————————————————
答案：(A)

If Ostrow's article immediately follows Herrera's
article, which of the following can be true?
Gallegos' article is third.
Gallegos' article is fifth.
Herrera's article is first.
Johnson's article is second.
Lee's article is second.

————————————————————————
答案：(E)

If Gallegos' article immediately precedes Lee's
article, then Ferraro's article must be
second
third
fourth
fifth
sixth