Task: Answer the multiple choice question.
Question: Which compound exhibits a -1.190\% 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 other words.
Options:
[a] CC1=C/C(=C/N(C)c2ccccc2)C(=O)S1
[b] Cc1ccc(N(NC(=O)C(C)(C)O)C(=O)c2ccccc2)cc1C
[c] O=C(/C=C/c1ccc2c(c1)OCO2)Nc1nc(-c2ccc(F)cc2)cs1
[d] COc1ccc(/C=N/n2cnnc2SCCO)cc1
Answer: a. CC1=C/C(=C/N(C)c2ccccc2)C(=O)S1
{#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#}
CC1=C/C(=C/N(C)c2ccccc2)C(=O)S1
CC1=C/C(=C/N(C)c2ccccc2)C(=O)S1
(3Z)-5-methyl-3-[(N-methylanilino)methylidene]thiophen-2-one