Task: Answer the multiple-choice question.
Question: Which drug exhibits a 9.005\% 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, or d without using any additional words.
Options:
(a) O=C(Cn1nnc2ccccc21)c1ccc(Cl)cc1
(b) CCCc1nnc(NC(=O)CCS(=O)(=O)c2ccccc2)s1
(c) CCCc1cc(=O)oc2cc(C)cc(OCC(=O)Nc3cccnc3)c12
(d) O=C(NC[C@@H]1CCCO1)c1cccc2c1C(=O)c1ccc(Cl)cc1S2(=O)=O
Answer: a. O=C(Cn1nnc2ccccc21)c1ccc(Cl)cc1
{#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#}
O=C(Cn1nnc2ccccc21)c1ccc(Cl)cc1
O=C(Cn1nnc2ccccc21)c1ccc(Cl)cc1
2-(benzotriazol-1-yl)-1-(4-chlorophenyl)ethanone