Task: Answer the multiple choice question.
Question: Which compound exhibits a 9.914\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) COc1ccc([C@H]2CC(=O)C=C(c3cccc4c3Oc3ccccc3S4)C2)cc1OC
(b) CCc1sc(C(=O)Nc2cccnc2)cc1Br
Answer: b. CCc1sc(C(=O)Nc2cccnc2)cc1Br
{#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#}
CCc1sc(C(=O)Nc2cccnc2)cc1Br
CCc1sc(C(=O)Nc2cccnc2)cc1Br
4-bromo-5-ethyl-N-pyridin-3-ylthiophene-2-carboxamide