Since segregation laws did not provide equal protections or liberties to non-whites, the ruling was not consistent with the 14th Amendment. The others contradict the initial question in one way or another.
Answer:
Sachar writes the humorous plot of Holes in a straightforward manner; however, he weaves into the plot three subplots. The subplots are tall-tale motifs that provide explanations about incidents involving previous Yelnats generations that significantly impact Stanley's life as well as the lives of others.