Which reason best explains why the author includes dialogue in the book? travels with charley

the correct answer is   d. a picture depicting people applauding a country's leader.

this is what i put and it was correct

it's a way for authors to communicate with reader in this time period. books from the past can teach us about life.

mark twain, real name samuel langhorne clemens, was an american writer, humorist, entrepreneur, publisher, and lecturer. among his novels are the adventures of tom sawyer and its sequel, the adventures of huckleberry finn, the latter often called "the great american novel". wikipedia

if this is referring to star wars, han shot first.