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What is the return type open() method?

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in C++ by (98.8k points)
What is the return type open() method?

(a) int

(b) char

(c) bool

(d) float

I got this question by my school principal while I was bunking the class.

I want to ask this question from File Handling topic in chapter Strings, Streams & Numerics in C++ of C++

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The correct option is (c) bool

The explanation: open() method returns a bool value indicating whether the file is opened or some error has occurred.

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