3. Select the two answer choices that complete the sentence with the same meaning: Researchers comparing subjects’ ability to interpret facial expressions found some expressions were difficult because they were so _____ the person making the expression.
Answer: C
Some expressions were difficult because they were so idiosyncratic to the person making the expression.
Facial expressions can often be unique to individuals, making them challenging to interpret for others. The term "idiosyncratic" accurately reflects this uniqueness in expression that varies from person to person.
A) habitual for
This option suggests that expressions are routine or regular for the person making them, which does not capture the idea that some expressions might be unique or personal. Therefore, "habitual for" does not align with the context of the difficulty in interpreting expressions.
B) customary for
While "customary for" implies that expressions may be typical for a certain person, it lacks the nuance of individuality. This option does not convey the idea of personal uniqueness necessary to explain the difficulty in interpretation.
C) idiosyncratic to
This choice indicates that expressions are distinctive or specific to the individual, which directly relates to the challenge of interpretation. It emphasizes the personal nature of expressions, making it the most suitable option.
D) opaque to
The term "opaque to" implies that expressions are unclear or hard to understand, but it does not address the uniqueness of the expressions themselves. This option does not effectively communicate the reason behind the difficulty in interpretation.
E) inoffensive to
"Offensive" implies a lack of aggression or insult, which is irrelevant in the context of interpreting facial expressions. This option does not relate to the ability to understand expressions and thus fails to provide any meaningful connection.
Conclusion
The correct answer, "idiosyncratic to," highlights the personal and unique nature of facial expressions, making them difficult to interpret. All other options either miss the aspect of individual uniqueness or do not pertain to the interpretation challenge, confirming that they are not appropriate choices for this context.