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The only environment without a parent is the ________ environment.

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The only environment without a parent is the ________ environment.

(a) full

(b) half

(c) null

(d) empty

The question was asked in a national level competition.

Question is from Scoping Rules topic in section Control Structures, Functions, Scoping Rules, Loop Functions and Debugging of R Programming

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Best answer
The correct choice is (d) empty

The best explanation: Every environment has a parent environment and it is possible for an environment to have multiple “children”.

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