Problem statement: Answer the multiple choice question.
Query: Which drug exhibits a 19.647\% 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) Br.O=C(CN1CCSC1=NCc1ccccc1)c1ccc(Cl)cc1
(b) CCCC(=O)Nc1cccc(Oc2nc(C)cc(C)c2C#N)c1
(c) O=C(Nc1cccc(Cl)c1)Nc1sccc1-c1nc2ccccc2s1
Answer: c. O=C(Nc1cccc(Cl)c1)Nc1sccc1-c1nc2ccccc2s1
{#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(Nc1cccc(Cl)c1)Nc1sccc1-c1nc2ccccc2s1
O=C(Nc1cccc(Cl)c1)Nc1sccc1-c1nc2ccccc2s1
1-[3-(1,3-benzothiazol-2-yl)thiophen-2-yl]-3-(3-chlorophenyl)urea