Which of the following statements contradict each other ? A. All ducks are…
2025
Which of the following statements contradict each other ?
A. All ducks are birds.
B. Some ducks are birds.
C. Some ducks are not birds.
D. No ducks are birds.
Choose the most appropriate answer from the options given below :
- A.
A and D Only
- B.
B and C Only
- C.
B and D Only
- D.
C and D Only
Attempted by 56 students.
Show answer & explanation
Correct answer: C
Correct contradiction pairs: the statements that contradict each other are listed below.
All ducks are birds contradicts Some ducks are not birds
Some ducks are birds contradicts No ducks are birds
Explanation: Two statements are contradictories when one is the exact negation of the other. The universal affirmative "All S are P" is negated by the particular negative "Some S are not P." The universal negative "No S are P" is negated by the particular affirmative "Some S are P."
Conclusion: There are two contradictory pairs among the given statements. Any answer that names only one of these pairs is incomplete.