1. Which of the declaration is correct?

A. int length;
B. char int;
C. int long;
D. float double;

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2. Which of the following operations are INCORRECT?

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3. Which of the following correctly represents a long double constant?

A. 6.68
B. 6.68L
C. 6.68f
D. 6.68LF

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4. Which of the structure is incorrect?

A. 1
B. 2
C. 3
D. 1, 2, 3

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5. Which of the structure is correct?

A. 1
B. 2
C. 3
D. All of above

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