how I enjoyed his new book

English as a Second Language English Vocabulary, Grammar and Idioms
1

[color=indigo]1) I told him how I enjoyed his new book.

Does this mean:
[color=blue]a) I told him that I enjoyed his new book.
or:
[color=red]b) I told him how much I enjoyed his new book.

Gratefully,
Navi.

2

I think b is the answer to your question.