Which quote from the passage is an example of direct characterization? “The demon was a big, cheerful-looking demon with a bland, round face. He eyed father.”
“Truth to tell, he had never handled a horseless carriage in his life, though he had a book on them and cut out articles whenever they appeared in the demon magazines and newspapers.”
“That was the extent of Father's knowledge. But to know facts is nothing.”
“He looked around inside the engine for about ten minutes and then wiped his face absentmindedly, so that the grease stained his cheek.”

The quote that is an example of direct characterization is:

A. "The demon was a big, cheerful-looking demon with a bland, round face. He eyed father."

Explanation:

We have direct characterization when we are told by the narrator what the character is or looks like. It is an explicit characterization. For instance, if in the story there are sentences such as "he was nervous" or "she had big brown eyes", the author is using direct characterization.

That is what we have in letter A. The quote uses direct characterization to let readers know what the demon looked like. We are clearly told he was "big" and "cheerful-looking", and he had a "bland, round face".