DRAG DROP
You need to implement the photo viewer page to meet the business requirements.
How should you complete the code segment? (To answer, drag the appropriate [source or sources]
to the correct location or locations in the answer area.)
Answer: See the explanation.
Second box should be ‘GridView’ because requirements need to semantic zoom.
https://www.microsoft.com/en-gb/developers/articles/week03jun14/how-to-use-semantic-zoom-in-a-windows-universal-app-to-visualise-data/