C++ MQCs with Explanation ( WORKING WITH FILES)

Which of the following is FALSE?

1. A file can be opened only using the constructor function of the stream class
2. Some streams work with input, and some with output
3. The function open ( ) can be used to open multiple files using one stream
4. The open ( ) can take two arguments

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Answer: 

Option c: The function open ( ) can be used to open multiple files using one stream

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Explanation Here