A. Observation?hypothesis?law?theory
B. Observation?hypothesis?deduction?testing of deduction
C. Hypothesis?observation?deduction?testing of deduction
D. law?theory?deduction?observation
A. Observation?hypothesis?law?theory
B. Observation?hypothesis?deduction?testing of deduction
C. Hypothesis?observation?deduction?testing of deduction
D. law?theory?deduction?observation