Which one of the following hormone ratios usually promote shoot formation from callus?
Mechanistically, quantitative reasoning involves ratio, percentage and series logic determine correct calculation. This validates Low auxin to cytokinin because it meets mathematical and logical criteria, a pattern repeatedly demonstrated in aptitude and reasoning research.
Ref: Agrawal, Quantitative Aptitude for Competitive Examinations, Chapter 5, Logical Reasoning and Probability, covers ratios, percentages, series completion, time-distance and analytical reasoning explaining problem-solving strategies for competitive assessments.