Which option correctly defines the scientific method?

a specific way of pursuing a scientific question that involves constructing a theory and then showing it is a law through experimentation
a specific way of pursuing a scientific question that involves constructing a theory and then showing it is correct through experimentation
a specific way of pursuing a scientific question that involves the systematic formulation, observation, testing, and modification of a hypothesis
a specific way of pursuing a scientific question that involves performing an experiment and then constructing a hypothesis