## Question 1
Given the following list of dependencies, what is the order of compilation of classes?

Select all that apply.

dependencies = [A, B], [B, C], [A, D]
### Options

1. [A, B, C, D]
Incorrect

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2. [C, A, B, D]
Incorrect

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3. [C, B, D, A]
Correct
According to the dependency pairs, A is dependent on B, and B is dependent on C. Hence, A should come after B, and B should come after C. A is also dependent on D, which means it should also come after D. This order of compilation satisfies all these conditions.
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4. [D, C, B, A]
Correct
According to the dependency pairs, A is dependent on B, and B is dependent on C. Hence, A should come after B, and B should come after C. A is also dependent on D, which means it should also come after D. However, since D shares no relationship with C and B, it can execute in any order with respect to classes C and B as long as the given dependencies are satisfied. Hence, this order of compilation is also correct.
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## Question 2
Given the following list of dependencies, what is the order of compilation of classes?

Select all that apply.

dependencies = [A, B], [B, C], [C, D]

### Options

1. [D, C, B, A]
Correct
According to the dependency pairs, A is dependent on B, B is dependent on C, and C is dependent on D. Hence, A should come after B, B should come after C, and C should come after D. This order of compilation satisfies all these conditions.
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2. [A, B, C, D]
Incorrect

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3. [A, C, D, B]
Incorrect

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4. [A, D, B, C]
Incorrect

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## Question 3
Given the following list of dependencies, what is the order of compilation of classes?

Select all that apply.

dependencies = [W, X], [X, Z], [Z, Y], [Y, X]
### Options

1. [Y, X, W, Z]
Incorrect

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2. [W, X, Y, Z]
Incorrect

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3. [X, Y, Z, W]
Incorrect

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4. None of the above
Correct
There's a cycle in the graph; hence, no topological order exists.
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