Read the excerpt from "The Revolt of Mother.”

A boy stood before the kitchen glass combing his hair. He combed slowly and painstakingly, arranging his brown hair in a smooth hillock over his forehead. He did not seem to pay any attention to the conversation.

"Sammy, did you know father was goin' to build a new barn?” asked the girl.

The boy combed assiduously.

Which phrase helps readers understand what the word hillock means?

“A boy stood before the kitchen glass . . .”
“He did not seem to pay any attention to the conversation.”
“He combed slowly and painstakingly, arranging his brown hair . . .”
“ ‘Sammy, did you know father was goin' to build a new barn?’ asked the girl.”

"He combed slowly and painstakingly, arranging his brown hair . . ."