In September, 2,209 people visited the museum. In June, the number of visitors to the museum grew to 3,897.
Which of the following uses rounding to the nearest hundred to estimate the change in the number of visitors?


a) 4,000 – 2,000
b) 4,000 – 2,200
c) 3,900 – 2,200
d) 3,800 – 2,300