The correct answer is "All items that have been formatted as Headings 1, 2, or 3 and Title will be added".
Step-by-step explanation:
When we are working with "Table of Contents (Automatic)" , Table of Contents" can be created only if you apply styles in your working document. These styles can be "H1(Heading 1), H2(Heading 2), H3 , etc" which would help the word software to create Table of Contents.
You can use, References ribbon and select Table of Contents to create it.
The option would differ if you are trying to use older version of word application.