The correct answer to this open question is the following.
When asked how they felt 10 years ago regarding marijuana issues, people recalled attitudes closer to their current views than to those they actually reported a decade earlier. This best illustrates memory construction.
This happens when people try to remember situations that happened in the past. They try to construct new memories from past references. When they bring up new memories, people are reconstructing the past. Of course, it is probable that during this action, people modify some things or alter the facts. So what they remember is not 100% true of how things happened.