hi everyone I thought the answer to this question was 900, why is it 1,000? The 100 people that aren't in these countries are undefined so wouldn't they not be included? 

 

04. A marketer creates a new segmentation called Country-EMEA, aiming to segment a total of 1,000 leads by different target regions in this geography. After setting up and approving the segmentation, the results show 250 records in the UK region, 50 in France, 200 in Germany, 400 in Italy and 100 who didn't fall into any of the defined country segments. What will be the final size of the new segmentation?
A. 900
B. 1,000
C. 1,250

 

Can someone please explain? Much appreciated, thank you