Consider the following passage outlining a scholarly debate in Mediterranean archaeology:
[1] For many years, historians attributed the abrupt Bronze Age collapse around 1200 BCE solely to external invasions by maritime raiders.
[2] However, recent archaeological and palaeoclimatological data indicate prolonged regional droughts during this period, pointing to severe internal environmental destabilization.
[3] In response, several researchers have advanced an integrated hypothesis proposing that climate-induced resource scarcity weakened societal institutions, leaving settlements uniquely susceptible to external raids.
[4] Consequently, historical analysis must treat the collapse as a failure of an interdependent socio-ecological network rather than the outcome of an isolated catastrophic event.
Arrange the following rhetorical functions in the order they occur in the passage, from the beginning to the end.
- 1Outlining a traditional hypothesis attributing a historical event to a single external cause
- 2Presenting newly uncovered environmental findings that challenge the established single-cause view
- 3Describing a synthesized model that combines environmental disruption with external vulnerability
- 4Articulating a broader methodological conclusion advocating an interdependent systems perspective