Read the sentences from “When Mindfulness Meets the Classroom” in the box.
• His class—a mix of black and Hispanic students in their late teens, most
of whom live in one of the poorest districts in New York City—by now were
used to the sight of this unusual object. . . . (paragraph 1)
• The U.S. education system’s focus on cognitive intelligence—IQ scores and academic skills like arithmetic—undermines the development of equally vital forms of non-cognitive intelligence. (paragraph 14)
What is the purpose of the dashes within the sentences?
A to introduce clarifying details
B to emphasize an opposing view
C to highlight the definition of a term
D to signal an interruption from another speaker