## Question 1
Which is a valid combination of balanced parentheses when n = 2?
### Options

1. ()()

(())

((()
Incorrect

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2. (())

))((

()()
Incorrect

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3. ()()

(())
Correct
The string contains 2 pairs of balanced brackets.
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## Question 2
Which of the following includes valid balanced parentheses?
### Options

1. (()()(()())())
Correct
The string contains 8 pairs of balanced brackets.
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2. (((())())
Incorrect

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3. (((()()(())())())
Incorrect

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## Question 3
Which is a valid combination of balanced parentheses when n = 7?

Select all that apply.
### Options

1. (((((()())))))
Correct
The string contains 7 pairs of balanced brackets.
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2. ((()()()())())
Correct
The string contains 7 pairs of balanced brackets.
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3. ()()()()(((()))
Incorrect

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