Task: Answer the MCQ question.
Question: Which drug exhibits a 12.878\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
[a] CC1Cc2ccccc2N1C(=O)CSc1nnnn1C(C)C
[b] O=C(NCc1ccccc1)c1ccc(CN2CCC(Cc3ccccc3)CC2)cc1
[c] COC(=O)C(Cc1c[nH]c2ccccc12)NC(=O)c1cncc(Br)c1
Answer: a. CC1Cc2ccccc2N1C(=O)CSc1nnnn1C(C)C
{#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#}
CC1Cc2ccccc2N1C(=O)CSc1nnnn1C(C)C
CC1Cc2ccccc2N1C(=O)CSc1nnnn1C(C)C
1-(2-methyl-2,3-dihydroindol-1-yl)-2-(1-propan-2-yltetrazol-5-yl)sulfanylethanone