Statements:
I. All agronomists are researchers.
II. Some researchers are drone pilots.
Which of the following conclusions can be logically derived beyond doubt?
Options:
(A) All drone pilots are agronomists
(B) Some agronomists are drone pilots
(C) At least some researchers are agronomists
(D) No agronomist is a drone pilot
Answer Key:
C
Step-by-Step Solution & Explanation
From Statement I ("All agronomists are researchers"), by immediate conversion (subalternation), "Some researchers are agronomists". Since Statement II only states that some researchers are drone pilots without specifying whether they overlap with the agronomist subset, neither A, B, nor D can be affirmed with certainty. Thus, only C is logically certain.