All clerks in the agency are civil servants. All civil servants in the agency are covered by the GSIS. Which conclusion follows?
Correct answer: B. All clerks in the agency are covered by the GSIS.
If every clerk is a civil servant and every civil servant is covered, then every clerk is covered. The reverse, that all GSIS members are clerks, does not follow. "Some civil servants are not clerks" may be true but is not stated.
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