Problem statement: Answer the MCQ question.
Question: Which drug exhibits a 19.810\% 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: COc1ccc(NC(=O)NCc2ccco2)c(OC)c1
b: O=[N+]([O-])c1ccc(N(CC(O)CN2CCCCC2)S(=O)(=O)c2ccccc2)cc1
c: O=c1c2[nH]c3ccccc3c2ncn1Cc1ccco1
d: COc1ccc(OC)c(CNc2ncc(-c3cccc([N+](=O)[O-])c3)n2C)c1.O=C(O)C(=O)O
Answer: c. O=c1c2[nH]c3ccccc3c2ncn1Cc1ccco1
{#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=c1c2[nH]c3ccccc3c2ncn1Cc1ccco1
O=c1c2[nH]c3ccccc3c2ncn1Cc1ccco1
3-(furan-2-ylmethyl)-5H-pyrimido[5,4-b]indol-4-one