Read the table of contents. The Traveler’s Guide to Japan

Table of Contents

1. Japan’s History: Then and Now…………..3

2. Itineraries for Must-See Cities…………..27

3. Getting Around…………………………...46

4. Basic Greetings………………………….63

5. Traveling on a Budget……………………89

If added to "The Traveler’s Guide to Japan,” which chapter would be the most helpful to someone planning a trip to Japan?

a chapter on the Japanese educational system
a chapter on the governing bodies in Japan
a chapter on the cultural influences of China
a chapter on the types of accommodations available

The chapter that would be the most helpful to someone planning a trip to Japan if added to "The Traveler’s Guide to Japan,” is:  a chapter on the types of accommodations available.

A visitor to Japan might not have friends and relatives with whom he may spend some time. Therefore, accommodation will be one of the foremost things in the mind of that visitor.

So if a guide is prepared that specifies the types of accommodation available in the country, the intending visitor will find this information very useful.

they insisted that there was not enough time to learn everything.  

explanation:

if they were going to steal the answers that is simply because they insisted that there was not enough time to learn everything.