Which of the following is the correct syntax to read all text from a file named "data.txt" using File.ReadAllText?

easy📝 Syntax Q12 of 15

C Sharp (C#) - File IO

Which of the following is the correct syntax to read all text from a file named "data.txt" using File.ReadAllText?

Astring content = File.ReadAllText("data.txt");

Bstring content = File.ReadAllLines("data.txt");

Cstring[] content = File.ReadAllText("data.txt");

Dstring[] content = File.ReadAllLines("data.txt");

Step-by-Step Solution

Solution:

Step 1: Identify method return types
File.ReadAllText returns a single string, so the variable must be string.
Step 2: Match syntax with variable type
string content = File.ReadAllText("data.txt"); uses string variable with ReadAllText correctly. Options B and D mismatch method and variable types. string[] content = File.ReadAllText("data.txt"); tries to assign string to string array.
Final Answer:
string content = File.ReadAllText("data.txt"); -> Option A
Quick Check:
ReadAllText returns string, so variable is string [OK]

Quick Trick: Match method return type with variable type [OK]

Common Mistakes:

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