Sandwhiches and pizza hope this helps sorry if it don't
Answer:
A. Ellis Island afforded them the opportunity to attain the American dream for themselves and their descendants
Explanation:
It fits the best to the Cause ⥤ Effect
The fragment that is made up of a complete predicate is option A. "could not be heard above the voices in the hallway"
In grammar, the predicate is defined as the part of the sentence that contains the verb and gives information about the subject.
Option A is the only option that contains a verb, in this case "could" and it is providing information about a subject we don´t know. The only options lack verbs,
The second one, the last one ( I think )