Pam has been doing a lot of walking in the quarantine. She has kept track of the number of miles she walked, and when she analyzed the data, she
found she had a median of 2.1 miles, a lower quartile of 1.5 miles, and an upper quartile of 3 miles. Which of the following statements must be true?

a. She walked more than 2.5 miles 38% of the time

b. She walked less than 1.5 miles 75% of the time.

c. She walked for more than 1.5 miles 25% of the time.

d. She walked more than 3 miles 25% of the time.