50. How does the writer suggest we deal with the effects of rosy retrospection? (A) We should use multiple sources of information to provide a more complete view of the past, present, and future. (B) We should be engaged in memory training so that we could recall from both short-term and long-term memories. (C) We should be aware of its effect on our judgment and decision-making, avoid a declinist perspective, and be careful not to prefer a rosy view of the past to the future.