The best answer in this case is C, "the researchers applied creativity to solve a problem in running an experiment".
Distributing the computing load across the global community by sharing processing power is a creative response to tackle the challenge in simulating protein folding for the experiment. This does not change or reduce the scientific merits of the experiment, so we can discount the first two answers (a & b). Answer d talks about well established scientific techniques, although the question wasn't really centered around the specific techniques, so it's not as relevant an answer as C.
Answer: Tt
Why? Heterozygous mean two different genotypes, meaning you need both dominant and recessive. So Tt
Hope this helps :D
Answer:
10000000000000000000847y7ubbvjbhughu ehtiggogj hghghg ee plus ate jvjvvjbvvjdd
