The word 'unfathomable' means not able to be understood.
to 'fathom' is to think or ponder on something so as to understand it.
Introduction.
A book's introduction is closely related to the content of the book itself. Usually found in nonfiction work, the introduction may summarize the main argument presented in the rest of the book, define any important terms, or fill in background details.
I hate when I get annoying calls from telemarketers trying to sell me crazy things.
Answer:
The right answer to this question is D.
