Choice C is the best answer. The previous question asks about which hypothetical situation Malhotra would most strongly object to. The answer, that he would most strongly object to researchers' reporting their findings but failing to disclose the null results, is best supported at the end of the seventh paragraph: "Even more troubling to Malhotra was the fact that two scientists whose initial studies 'didn't work out' went on to publish results based on a smaller sample. 'The non-TESS version of the same study, in which we used a student sample, did yield fruit,' noted one investigator."
Choices A, B, and D are incorrect because the cited lines don't support the answer to the previous question about which situation Malhotra would most strongly object to. Instead, they cite another researcher's attitude toward null results from his or her own study (choice A), compare the publication rate for studies that produce null results with that for studies that produce statistically significant results (choice B), and describe the recommendation by Malhotra and his team for the creation of a database to remedy problems resulting from the nonpublication of null results (choice D).