Pass or fail algorithm

Which of the following correctly represents an algorithm that outputs “Pass” if a student’s score—labeled score—is 50 or above, and “Fail” otherwise? (Note: More than one flowchart may be correct.)

Select the correct flowchart(s) from the options below:

• Flowchart in Figure 1 (a)
• Flowchart in Figure 1 (b)
• Flowchart in Figure 1 (c)
• Flowchart in Figure 1 (d)
• Flowchart in Figure 1 (e)

Figure 1 groups the five candidate flowcharts for comparison.

graph LR
    accTitle: Pass-or-fail candidate A
    accDescr: Scores at least 50 follow the Pass branch; lower scores follow the Fail branch.
    A((Start)) --> B[/score/]
    B --> C{"Is score >= 50?"}
    C -- Yes --> D[/Pass/]
    C -- No --> E[/Fail/]
    D --> F((End))
    E --> F

(a) Candidate A.

graph LR
    accTitle: Pass-or-fail candidate B
    accDescr: Scores greater than 50 follow the Pass branch; a score of exactly 50 follows the Fail branch.
    A((Start)) --> B[/score/]
    B --> C{"Is score > 50?"}
    C -- Yes --> D[/Pass/]
    C -- No --> E[/Fail/]
    D --> F((End))
    E --> F

(b) Candidate B.

graph LR
    accTitle: Pass-or-fail candidate C
    accDescr: Scores below 50 follow the Fail branch; scores of 50 or more follow the Pass branch.
    A((Start)) --> B[/score/]
    B --> C{"Is score < 50?"}
    C -- Yes --> D[/Fail/]
    C -- No --> E[/Pass/]
    D --> F((End))
    E --> F

(c) Candidate C.

graph LR
    accTitle: Pass-or-fail candidate D
    accDescr: Only a score equal to 50 follows the Pass branch; every other score follows the Fail branch.
    A((Start)) --> B[/score/]
    B --> C{"Is score = 50?"}
    C -- Yes --> D[/Pass/]
    C -- No --> E[/Fail/]
    D --> F((End))
    E --> F

(d) Candidate D.

graph LR
    accTitle: Pass-or-fail candidate E
    accDescr: Scores at least 50 follow the Fail branch, while lower scores follow the Pass branch.
    A((Start)) --> B[/score/]
    B --> C{"Is score >= 50?"}
    C -- No --> D[/Pass/]
    C -- Yes --> E[/Fail/]
    D --> F((End))
    E --> F

(e) Candidate E.

Figure 1: Pass or Fail Algorithm (Question 1).