A certain chemical carcinogen causes a lethal chemical modification in DNA bases with a probability of 10 ⁻⁷ . It was fo
This outcome reflects quantitative reasoning, where ratio, percentage and series logic determine correct calculation. Option D captures this correctly because it meets mathematical and logical criteria, consistent with textbook descriptions and experimental observations in aptitude and reasoning.
Ref: Wren and Martin, High School English Grammar and Composition, Revised Edition, Chapter 12, discusses vocabulary and comprehension providing guidance for verbal aptitude and logical inference assessment.
