Bill Is Creating a Survey and Wants to Know How

Multiple Choice

Bill is creating a survey and wants to know how long individuals have been working at their current job. Here's how it looks on his survey:
How long have you been in your current position at work?
Less than 1 Month
1-2 Months
3-6 Months
7-12 Months
1-2 Years
2-6 Years
6-10 Years
10+ Years
What level variable is this survey question?

A) ordinal
B) interval
C) ratio
D) nominal