Read the passage from Chapter 31 which begins “‘You can pet him, Mr. Arthur’” and ends “…except possibly algebra.”

In the next to last paragraph, “Just standing … was enough” implies that

A. there was no need to understand Boo

B. Boo never walked around; he only stood on his porch

C. being on the porch was as close as the narrator wished to come

D. the narrator now understood Boo

E. seeing Boo once was enough for the narrator