“I guess . . . I mean, you’re right.”

“You O.K. for a youngster,” the old man said as he tied the strings around his leg, “better than those scalawags what come here looking for my treasure. That’s for sure.”

“You really think that treasure of yours was worth fighting for?” Greg asked. “Against a pipe?”

“What else a man got ’cepting what he can pass on to his son, or his daughter, if she be his oldest?” Lemon Brown said. “For a big-headed boy you sure do ask the foolishest questions.”

—“The Treasure of Lemon Brown,”
Walter Dean Myers

How does the author clearly show who is speaking in this passage? Check all that apply.

He makes the characters speak in their own voice and style.
He always uses a speaker tag.
He adds a paragraph break when the speaker changes.
He sometimes uses a speaker tag.