What is abnormal about the boys in the guest-book? Billy went to school with them.
B
They have uncommon names.
to
They are celebrities,
as
They sound familiar to Billy.

They sound familiar to Billy.

Explanation:

Roald Dahl's short story "The Landlady," tells the unfortunate tale of how Billy Weaver, who was sent to Bath for business. In his eagerness to find a reasonable accommodation for the night, he ended up at the landlady's "Bed and Breakfast".

The weird thing about the lodging was that the landlady made her guests sign the guest-book and then poison them. Afterward, she'd stuff them and keep them as a prized collection. Likewise, Billy was asked to sign the book when he discovered that he felt the names sound so familiar to him. The names "Christopher Mulholland from Cardiff [. . .] Gregory W. Temple from Bristol" all sounded so familiar to him because they had appeared in the newspapers.

Thus, the correct answer is the fourth option.

faithful servants eumaeus and philaetius:

his ragged vest then drawn aside disclosed the sign conspicuous, and the scar exposed: eager they view'd, with joy they stood amazed with tearful eyes o'er all their master gazed:

these servants know ulysses by the scar he got when he was a child - so when he showed them the mark, they immediately knew this is truly their master and they hugged him, finally starting to believe his words.

the answer is d: message a character's thoughts