Answer:
A:They were helpful
Explanation:
It says"This succeeded admirably; for in a short time we understood them and they us both by gesture and signs and words; and they were of great service to us".
The geography of Japan effected the development of Shintoism because the Shinto beliefs from China and Korea could easily spread to Japan.
This is how the geography of Japan helped Shinto beliefs explode in Japan.
Hope this helps you!
Making an inference is a reasonable thing to do relationally as long as you first describe the observable behavior that led to the inference.