Exercise 3: Does a Storyboard Step Apply to My Project? — Possible Solution
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TASK
A tutorial says "open the storyboard and drag a button onto the view
controller." Explain how you would decide whether that step applies to a
SwiftUI project, and name two unverified claims.

ANSWER
- Look at the project. In a SwiftUI project the interface is written as
  Swift code and viewed in the canvas, so a step that says to drag elements
  into a storyboard describes Interface Builder, the older tool.
- If the project has no storyboard or .xib file for that screen, the step
  does not apply, and you would look for the SwiftUI equivalent.
- If it does contain one (a mixed project), the step may apply to that
  screen only.

TWO UNVERIFIED CLAIMS
1. When storyboards were introduced and how they differ from .xib files.
2. The canvas features (device selection at the bottom of the canvas, light
   and dark modes, interactive previews) against Apple's own documentation,
   and how interactive previews behave across Xcode versions.