Task: Answer the MCQ question.
Query: Which compound exhibits a 18.665\% 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, d, or e without using any other words.
Options:
a) O=C(Nc1ccccn1)c1cc2cc([N+](=O)[O-])ccc2s1
b) O=S1(=O)CCOC[C@H](CC2CCCCC2)N1Cc1ccccc1F
c) Clc1ccc(NCc2nnsc2Cl)cc1
d) CCn1c(/C=C/c2c(C)[nH]c3ccccc23)nc2ccccc2c1=O
e) COc1ccc(CCC(=O)N(C)CC(=O)Nc2ccc(N3CCOCC3)cc2)cc1
Answer: a. O=C(Nc1ccccn1)c1cc2cc([N+](=O)[O-])ccc2s1
{#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(Nc1ccccn1)c1cc2cc([N+](=O)[O-])ccc2s1
O=C(Nc1ccccn1)c1cc2cc([N+](=O)[O-])ccc2s1
oxido-oxo-[2-(pyridin-2-ylcarbamoyl)-1-benzothiophen-5-yl]azanium