Task: Answer the MCQ question.
Question: Which compound exhibits a -1.139\% 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: CC(=O)c1ccc(OCCCC(=O)NC(C)c2ccc(S(N)(=O)=O)cc2)cc1
b: O=C(c1ccccc1SCc1ccccc1)N1CCOCC1
c: Cc1cccc(CN2CCN(Cc3ccc(-n4cccn4)cc3)CC2CCO)n1
d: CCOc1cc(NC(=S)NCCCN2CCOCC2)c(OCC)cc1NC(=O)c1cccc(C)c1
Answer: b. O=C(c1ccccc1SCc1ccccc1)N1CCOCC1
{#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(c1ccccc1SCc1ccccc1)N1CCOCC1
O=C(c1ccccc1SCc1ccccc1)N1CCOCC1
(2-benzylsulfanylphenyl)-morpholin-4-ylmethanone