which of the following are examples of cognition

The definite noun phrase the following examples contains enough information for the reader to identify which examples are being talked about. The examples that the definite noun phrase refers to are the ones that are about to be mentioned. Which of the following statements is grammatically incorrect? And why? (I don't know the answer. Ignore the marks) Meats and vegetables are so expensive these days. We'd better eat out. I'd rather go An international study has identified three psychological profiles associated with different patterns of cognitive and brain decline in aging. The study, which analyzed more than 1,000 middle-aged and ...