Given the class Person { public string Name; public int Age; } and list people with three persons: Alice(30), Bob(25), and Carol(35), what does this LINQ query return?

medium📝 Predict Output Q13 of 15

C Sharp (C#) - LINQ Fundamentals

Given the class Person { public string Name; public int Age; } and list people with three persons: Alice(30), Bob(25), and Carol(35), what does this LINQ query return?

var result = people.Where(p => p.Age > 28).Select(p => p.Name).ToList();

A["Alice", "Carol"]

B["Bob"]

C["Alice", "Bob", "Carol"]

DEmpty list

Step-by-Step Solution

Solution:

Step 1: Filter people older than 28
Alice is 30 (yes), Bob is 25 (no), Carol is 35 (yes).
Step 2: Select their names
Names selected are "Alice" and "Carol".
Final Answer:
["Alice", "Carol"] -> Option A
Quick Check:
Age > 28 filters Alice and Carol [OK]

Quick Trick: Filter first, then select property [OK]

Common Mistakes:

MISTAKES

Including Bob who is younger
Selecting whole object instead of names
Confusing > with <

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Given the class Person { public string Name; public int Age; } and list people with three persons: Alice(30), Bob(25), and Carol(35), what does this LINQ query return?

Step 1: Filter people older than 28

Step 2: Select their names

Final Answer:

Quick Check:

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