Task: Answer the multiple-choice question.
Question: Which drug exhibits a 9.878\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
[a] CCc1nc(C#N)c(N2CCCCC2)o1
[b] O=C(Nc1ccc(S(=O)(=O)N2CCOCC2)cc1)C1CC1
[c] O=C(CCSCc1ccc(Cl)cc1)NCc1ccco1
[d] Cc1ccc(Cn2c(CCNc3nc(-c4ccc(Cl)c([N+](=O)[O-])c4)cs3)nc3cc(C(=O)NCCCO)ccc32)cc1
Answer: a. CCc1nc(C#N)c(N2CCCCC2)o1
{#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#}
CCc1nc(C#N)c(N2CCCCC2)o1
CCc1nc(C#N)c(N2CCCCC2)o1
2-ethyl-5-piperidin-1-yl-1,3-oxazole-4-carbonitrile