Task: Answer the MCQ question.
Question: Which drug exhibits a 19.845\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a. CCn1c2ccccc2c2cc(NC(=O)CSc3nnc(-c4cccc(OC)c4)n3N)ccc21
b. NC(=O)[C@@H]1CCCNc2c(I)cc([N+](=O)[O-])cc2C(=O)N[C@@H](CCCN=C(N)N)C(=O)N[C@@H](CCCN=C(N)N)C(=O)N1
c. Cc1c(C=O)c2ccccc2n1CC(=O)O
Answer: c. Cc1c(C=O)c2ccccc2n1CC(=O)O
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_1uM#}{herg_central_at_1uM__units} {herg_central_at_1uM__names__noun}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%herg_central_at_1uM%}
Answer: {%multiple_choice_result}. {SMILES#}
Cc1c(C=O)c2ccccc2n1CC(=O)O
Cc1c(C=O)c2ccccc2n1CC(=O)O
2-(3-formyl-2-methylindol-1-yl)aceticacid