Task: Answer the MCQ question.
Question: Which compound exhibits a 14.995\% 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 additional words.
Options:
a: C=CCOc1ccc(/C=N/O)cc1Cl
b: O=C(c1cnsn1)N1CCN(c2ccccn2)CC1
c: NS(=O)(=O)c1ccc2nc(NC(=O)c3ccc(Br)o3)sc2c1
d: O=[N+]([O-])c1ccc(N2CCCCC2)cc1
Answer: b. O=C(c1cnsn1)N1CCN(c2ccccn2)CC1
{#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=C(c1cnsn1)N1CCN(c2ccccn2)CC1
O=C(c1cnsn1)N1CCN(c2ccccn2)CC1
(4-pyridin-2-ylpiperazin-1-yl)-(1,2,5-thiadiazol-3-yl)methanone