Are ''Invisible'' and ''Hidden'' properties for fields in the Key User Tool?

Hi! I am studying for C4C certification. Got stuck on this question, any help is appreciated.

In the Learning Assessment of the ebook (C4C10), Question 8:

In the Key User Tool, which of the following properties are available for fields?

A. Mandatory

B. Invisible

C. Read only

D. Hidden

The answer is A. Mandatory and C. Read only.

But in the same ebook, p. 249, it says '' Adaption Tool (Key User Tool) Capabilities: Change field property - Mandatory, Read Only, Invisible, Hidden.''

In a word, in the same book, the exercise says that ''Invisible'' and ''Hidden'' are not propertities of a field in the Key User Tool, while earlier in the book in chapter 11 it says that they are.

So my question is: Are ''Invisible'' and ''Hidden'' properties for fields in the Key User Tool or not?