Which passage is possibly opinion-based?
“The researchers found two possible explanations for these results, and there was evidence for both” (25).
“unless you’re eating acai berries, one of the few natural foods that take on a purplish hue.”
“The few places that associate blue with sadness-Hong Kong for example-tend to like it less.”
“Colors shape how we think and behave in many different areas of life, and sometimes the same color has different effects depending on what we’re doing” (25).