[Solved] What is wrong with this Ruby code snippet?content = File.read puts content — Ans: File.read requires a filename argument | Ruby

Ruby - File IO

What is wrong with this Ruby code snippet?

content = File.read
puts content

AFile.read returns nil without a file

BFile.read requires a filename argument

CFile.read cannot be used with puts

DNo error, code works fine

Step-by-Step Solution

Solution:

Step 1: Check File.read usage
File.read must be called with a filename string argument.
Step 2: Identify error cause
Calling File.read without arguments causes an ArgumentError.
Final Answer:
File.read requires a filename argument -> Option B
Quick Check:
File.read needs filename argument = C [OK]

Quick Trick: Always provide filename string to File.read [OK]

Common Mistakes:

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