Mrs Hill Has Decided to Provide Her First-Grade Students with Gold

Mrs. Hill has decided to provide her first-grade students with gold stars to reward them for reading. She has decided to use performance-contingent rewards. To do this, she will give gold stars __________.

A) to children each time they spend ten minutes reading
B) only to those children who can read a passage without mistakes
C) to the children and take one star away after each mistake they make when reading
D) only when children decide to read during free time