Concept:An assumption is implicit if it is directly supported by, or logically follows from, the given statement.
Explanation:The statement mentions that users often believe content based on "perceived authority or emotional appeal" rather than factual accuracy.
Assumption I states that users are more likely to believe false information when it appears credible or emotionally appealing.
This idea is directly supported by the statement, so Assumption I is implicit.
The statement further says that users who lack critical thinking skills are "particularly vulnerable" and "struggle to identify and verify information independently."
Assumption II states that a lack of critical thinking is a significant factor in the spread of misinformation because users accept information at face value.
This is also clearly supported by the statement, so Assumption II is implicit.
Therefore, both assumptions follow from the given statement.
Answer:Both assumptions I and II are implicit.
Hence, the correct option is E.