Task: Answer the MCQ question.
Query: Which drug exhibits a 16.178\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
(a) O=C(Nc1ccc(C2=NCCN2)cc1)c1ccc(Cl)c(C(=O)Nc2ccc(C3=NCCN3)cc2)c1
(b) CC1(C)Cc2c(C#N)c(N3CCCC3)nc(-c3ccco3)c2CO1
(c) Cc1cc(Nc2ccc(F)cc2F)n2ncnc2n1
Answer: b. CC1(C)Cc2c(C#N)c(N3CCCC3)nc(-c3ccco3)c2CO1
{#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)Cc2c(C#N)c(N3CCCC3)nc(-c3ccco3)c2CO1
CC1(C)Cc2c(C#N)c(N3CCCC3)nc(-c3ccco3)c2CO1
8-(furan-2-yl)-3,3-dimethyl-6-pyrrolidin-1-yl-1,4-dihydropyrano[3,4-c]pyridine-5-carbonitrile