Final answer:
The 'Lost in the Mall' study conducted by Elizabeth Loftus demonstrated that false memories can be implanted through suggestion.
Step-by-step explanation:
The 'Lost in the Mall' study conducted by Elizabeth Loftus demonstrated option b) False memories can be implanted through suggestion. Loftus is a cognitive psychologist who has extensively researched memory and the misinformation effect. In her study, Loftus showed that false memories can be implanted in individuals through suggestive techniques such as leading questions. This suggests that memory retrieval is not always accurate and reliable, and the reliability of eyewitness testimony can be questioned.