Task: Answer the multiple choice question.
Query: Which compound exhibits a 18.049\% 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. O=C(Cn1nnc(-c2cccs2)n1)N1c2ccccc2Sc2ccc(C(F)(F)F)cc21
b. Cc1nc(SCC(=O)N2CCCCCC2)[nH]c(=O)c1C
c. CC(=O)Nc1ccc2[nH]ccc2c1
d. Cc1ccc(N=C2C(=O)Nc3ccc(C)c(Br)c32)cc1
Answer: b. Cc1nc(SCC(=O)N2CCCCCC2)[nH]c(=O)c1C
{#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#}
Cc1nc(SCC(=O)N2CCCCCC2)[nH]c(=O)c1C
Cc1nc(SCC(=O)N2CCCCCC2)[nH]c(=O)c1C
2-[2-(azepan-1-yl)-2-oxoethyl]sulfanyl-4,5-dimethyl-1H-pyrimidin-6-one