Task: Answer the multiple-choice question.
Question: Which compound has a 15.300\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
(a) O=C(CSCc1ccc(Br)cc1)N1CCCC1
(b) Cc1c(Cl)cccc1NC(=O)Nc1cnccn1
(c) CC(C)(C)NS(=O)(=O)c1ccc(CCC(=O)Nc2cc(Cl)ccc2Oc2ccccc2)cc1
(d) Cn1cc(CCNC(=O)CC2C(=O)NCCN2CC(c2ccccc2)c2ccccc2)cn1
(e) O=C(OCn1nnc2ccccc2c1=O)c1cc(-c2ccccc2Cl)nc2ccccc12
Answer: b. Cc1c(Cl)cccc1NC(=O)Nc1cnccn1
{#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(Cl)cccc1NC(=O)Nc1cnccn1
Cc1c(Cl)cccc1NC(=O)Nc1cnccn1
1-(3-chloro-2-methylphenyl)-3-pyrazin-2-ylurea