Final answer:
In the "doing-it-once" environment, what is reconsidered is the Data interpretation, acknowledging how recreated ecosystems can affect study validity.
Step-by-step explanation:
In the "doing-it-once" environment, which refers to studies that are conducted only once without replication, what is being reconsidered is D) Data interpretation. This reconsideration occurs due to the understanding that recreating an ecosystem can alter its dynamics, potentially affecting the validity of the results. Sociologists and other scientists often replicate studies in different environments to confirm findings and understand social phenomena in various contexts. This replication and reinterpretation of data ensure that theories and knowledge are robust and widely applicable.