[Solved] Find the issue in this code:var list = new List<string> { "apple", "banana" }; var result = list.FirstOrDefault(x => x.StartsWith("c")); Console.WriteLine(result.Length); | C Sharp (C#)

C Sharp (C#) - LINQ Fundamentals

Find the issue in this code:

var list = new List<string> { "apple", "banana" };
var result = list.FirstOrDefault(x => x.StartsWith("c"));
Console.WriteLine(result.Length);

AThrows NullReferenceException

BPrints 0

CPrints length of "apple"

DSyntax error in lambda

Step-by-Step Solution

Solution:

Step 1: Understand FirstOrDefault() with predicate
Returns first matching element or default (null for reference types) if none found.
Step 2: Check if any string starts with "c"
None do, so result is null.
Step 3: Accessing Length on null causes exception
Calling result.Length throws NullReferenceException.
Final Answer:
Throws NullReferenceException -> Option A
Quick Check:
Accessing property on null causes exception [OK]

Quick Trick: Check for null before accessing properties after FirstOrDefault() [OK]

Common Mistakes:

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