[Solved] Find the mistake in this Swift code:let a: Set = [1, 2, 3] let b: Set = [3, 4, 5] let c = a.subtract(b) print(c) | Swift

Swift - Collections

Find the mistake in this Swift code:

let a: Set = [1, 2, 3]
let b: Set = [3, 4, 5]
let c = a.subtract(b)
print(c)

AMissing type annotation for c

BSets cannot be subtracted

Cprint() cannot print sets

Dsubtract() is not a valid Set method; use subtracting()

Step-by-Step Solution

Solution:

Step 1: Verify the method for difference
Swift uses subtracting(), not subtract().
Step 2: Confirm other code parts
Sets can be subtracted, type inference works, and print can output sets.
Final Answer:
subtract() is not a valid Set method; use subtracting() -> Option D
Quick Check:
Use subtracting() for set difference [OK]

Quick Trick: Use subtracting() method, not subtract() [OK]

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