Read the excerpt from Island of Hope, Island of Tears. Which statement best describes the text structure of this sentence and explains why it is used? If illness was suspected, immigrants were detained at Ellis Island's hospital complex. O A sequence text structure is used to describe the order of events at Ellis Island's hospital complex. © Acompare-and-contrast text structure is used to show the relationship between illness and treatment. O A sequence text structure is used to explain the order of events that occurred after an immigrant was detained. O A cause-and-effect text structure is used to explain why immigrants could be detained at the hospital complex

D). The cause is if the illness was suspected, and the effect is immigrants were detained.

Explanation:

The cause-and-effect structure is primarily used to denote the reasoning for a specific problem or issue and the effects brought by the causes.

The last statement i.e. 'the cause ... detained' aptly relates that the given excerpt from 'Island of Hope' employs the 'cause-and-effect' structure and explains it. In the given paragraph, the organization of the cause 'if the illness is suspected' followed by the effect 'detaining of immigrants' assists the readers to identify the probable consequences associated with the action and understand the idea clearly. Thus, option D is the correct answer.

The phrase is a relative pronoun.

Explanation:The phrase is a relative pronoun.