Task: Answer the multiple choice question.
Query: Which drug exhibits a 12.563\% 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: Cc1ccc(S(=O)(=O)CC2CSc3ncnc4ncn2c34)cc1
b: CCn1c(C(O)c2cc(OC)ccc2OC)nc2ccccc21
c: O=C(O)c1ccccc1/C=N/Nc1ccc(S(=O)(=O)N2CCCC2)cc1[N+](=O)[O-]
d: COc1cccc(-c2cccc(NC(=O)C3CCN(Cc4nccs4)CC3)c2)c1
Answer: b. CCn1c(C(O)c2cc(OC)ccc2OC)nc2ccccc21
{#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#}
CCn1c(C(O)c2cc(OC)ccc2OC)nc2ccccc21
CCn1c(C(O)c2cc(OC)ccc2OC)nc2ccccc21
(2,5-dimethoxyphenyl)-(1-ethylbenzimidazol-2-yl)methanol