You need to store a list of user names that can change during program execution. Which approach is best and why?

hard🚀 Application Q15 of 15

C Sharp (C#) - Collections

AUse a List<string> because it can grow and shrink as users are added or removed.

BUse an array because it is faster and fixed size is enough.

CUse a fixed-size array and recreate it every time the list changes.

DUse a string variable to store all names separated by commas.

Step-by-Step Solution

Solution:

Step 1: Analyze data size flexibility needs
User names list changes size, so fixed size arrays are inconvenient.
Step 2: Choose collection type for dynamic data
List<string> allows adding/removing names easily without recreating the structure.
Final Answer:
Use a List<string> because it can grow and shrink as users are added or removed. -> Option A
Quick Check:
Dynamic data needs collections like List [OK]

Quick Trick: Dynamic data? Use List for easy resizing [OK]

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