Read the following conversation and answer the question.

W: Peter, where is the ear? I haven't seen you drive to work for a long time! Is it broken or stolen?

M: Hi, Susan] Oh, no! Of course not! I give up driving to work. Instead, I ride to my working place.

W: Why is that?

M: You see. There is only a stone's throw from my home to my working place. I think riding a bike to work is more convenient.

W: I don't think so. It will take you at least 25 minutes to get to our company from here.

M: Yes, sometimes, 30 minutes. But I love riding to work now. It is a totally different picture on my way to work.

W: Why do you think so?

M: You see, every morning, after I set off for work, I can breathe the new fresh air along the way. By the time I reach my office, I feel rather revived. I even don't rely on coffee to spend my morning hours.

W: Is it so magical?

M: At least, that's how I feel about riding to work. I can't believe I have wasted so much fresh morning air in the past 3 years!

W: Will you continue riding to work in the future?

M: I think so.

Question: What's the possible relationship between the two? 

- Classmates.

- Husband and wife.

- Colleagues.


Colleagues.