Answer:A) people are particularly sensitive to suggestion in the process of encoding.
Explanation: An ambiguous figures are also known as reversible figures are graphical representation of two distinct images of an object, ambiguous figures exploit the visual displays.Ambiguous figures usually reverses a person's perception spontaneously even as the visual information to be sent remain the same.
Encoding is a biological process which begins with perception through the senses, during this process people are particularly sensitive to suggestions.