Line 2 is the base case and Line 3 is the recursive call.

Line 1 is the base case and Line 2 is the recursive call.

Line 3 is the base case and Line 2 is the recursive call.

Line 3 is the base case and Line 1 is the recursive call.

Line 2 is the base case and Line 1 is the recursive call.

Add (trace fib) as the first line of code.

Add (start trace) before the definition and (end trace) following the definition.

(require racket/trace) MUST be added before defining the function and (trace fib) MUST be added after defining the function.

Add (require racket/trace) anywhere before (trace fib). (trace fib) MUST be added before the function call but after the fib function definition.

(require racket/trace) MUST be added as the first line of code. (trace fib) MUST be added before the function call but after the fib function definition.

They define different functions.

They both define different constants.

Line 1 defines a list and line 3 defines a function.

They define different lists.

Line 1 defines a list and line 3 defines a string.

  (10 5 8 3 10 10)

  (10 8 10 5 3 10)

  (15 11 20)

  (3 10)

  (46)

The first will cause a syntax error and the second will print out a list. 

The first will print out a list and the second will cause an error.

The first will print: 1 2 3 4 5, and the second will print: (1 2 3 4 5).

The first will print: (1 2 3 4 5), and the second will print: ((1 2 3 4 5)).

     None of the other answers.

Reproduce Everything Proceeding Left.

Reassign Each Predicate Locally.

Read Evaluate Print Loop.

Revise Edit Produce Last.

Read Every Product List.