SAT Inferences Question

Chelsea Wood et al. tracked temperature-driven changes in the abundance of Opechona sp. (a complex life cycle parasite, or CLP, that requires three host species throughout its life cycle), Anthocotyle merlucci (a directly transmitted parasite, which requires only one host species), and 83 other parasite taxa found on eight fish species. CLPs are transmitted when an infected host is ingested by an individual of another species, typically shielding CLPs from the external environment, whereas directly transmitted parasites are exposed to external conditions during transmission. However, Wood et al. found that three-host CLP abundance decreased as sea temperatures rose, whereas directly transmitted parasite abundance was largely stable, suggesting that Which choice most logically completes the text?