The Results of Crum and Langer's Hotel Experiment

The results of Crum and Langer's hotel experiment:

A) were contradicted by the results of correlational research based on a student survey about health, diet, and exercise and personality measures.
B) had little impact because the statistical analysis was flawed.
C) provided additional support for the idea that people's beliefs and expectations can have a powerful influence.
D) were discounted because the evidence was purely correlational.