Question

Mackenzie recorded the ages of her friends.

Age in years
10, 11, 10, 12, 10, 11, 10

Which statement about her friends' ages is true?

A.
They are all the same age.

B.
If a new friend is 10 years old, it will raise the mode.

C.
Most of her friends are 10 years old.

D.
They have a median age of 11.