Answer:
d.the symmetry heuristic
Explanation:
George Pólya was one of the founders of the heuristics who was a Hungarian mathematician during 1945.
Heuristic: The term heuristic is defined as a mental shortcut that is being used by human beings for problem-solving, discovery or learning that utilizes a practical method that is not guaranteed as perfect or optimal yet considered as sufficient for the immediate or required goals.
Symmetry heuristic: The term symmetry heuristic is defined as the process in which human beings think of buildings, shapes as more symmetrical than the reality of them.
In the question above, the given statement states the significance of the symmetry heuristics.