[Solved] Identify the error in this Swift code snippet:var score: Int? = 10 print(score * 2) — Ans: Cannot use * operator directly on an optional without unwrapping | Swift

Swift - Optionals

Identify the error in this Swift code snippet:

var score: Int? = 10
print(score * 2)

AMissing semicolon at the end of print statement

Bscore should be declared as a constant

CCannot use * operator directly on an optional without unwrapping

DOptional variables cannot hold integers

Step-by-Step Solution

Solution:

Step 1: Analyze operation on optional
score is an optional Int, so arithmetic operators cannot be applied directly.
Step 2: Correct usage
score must be unwrapped safely before multiplying, e.g., using if let or !.
Final Answer:
Cannot use * operator directly on an optional without unwrapping -> Option C
Quick Check:
Optionals need unwrapping before arithmetic = C [OK]

Quick Trick: Unwrap optionals before using operators [OK]

Common Mistakes:

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