Mrs. Keegan's class has 19 students who are 11 years-old and 32 students who are 12 years-old. What is the ratio of 11 year-old students to 12 year-old students in Mrs. Keegan's class.

*
19:32
32:19
11:12
12:11

The ratio of 11 year-old students to 12 year-old students in Mrs. Keegan's class is 19:32.