Xenophobia is an irrational fear or dislike of foreigners or strangers. The relationship between "xenophobia" and "foreigners" is one of fear towards a specific target group.
To find a related pair, we need to identify the other phobias listed and determine their respective targets.
Phobia
Target Group
Claustrophobia
Enclosed spaces
Anglophobia
Englishmen
Bibliophobia
Books
Hemophobia
Blood
Upon analyzing the connections, the correct relationship formed by the pair is "anglophobia : Englishmen," where "anglophobia" is the fear of or aversion to English people, just as "xenophobia" is the fear of foreigners.