Question 11 CIT0002 working and studying at the same time

[Memg]

Hi,
I am filling question 11 of CIT0002 for canadian citizenship and I have following doubt:
I had been working from 2016 to 2018 for an enterprise but in 2017 I took a 3 months comptable course, and I dont know how to fill the question 11 chart to make it clear.
Could you please advise the best way to do it?
Many thanks
Amelie

 

[Seym]

List both. Overlaps are fine.