Calvin is practicing for a golf tournament. His normal driver distance is 250 yards. He hits three balls with his driver, and they travel a distance of 270 yards, 273 yards, and 269 yards. Which of the following is true?

a. His drives are precise but not accurate.
b. His drives are both accurate and precise.
c. His drives are neither accurate nor precise.
d. His drives are accurate but not precise.