Task: Answer the multiple choice question.
Query: Which drug has a 6.970\% 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) O=C(CC1NCCNC1=O)Nc1cccc([N+](=O)[O-])c1
(b) Cc1[nH]c2ccccc2c1C(=O)C(=O)NCC1CCCO1
(c) Cn1c(=O)[nH]c(=O)c2c1ncn2CCCc1ccccc1
(d) O=C(CN1C2CCC1CC(O)(c1cccnc1)C2)Nc1ccc2c(c1)OCO2
Answer: a. O=C(CC1NCCNC1=O)Nc1cccc([N+](=O)[O-])c1
{#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(CC1NCCNC1=O)Nc1cccc([N+](=O)[O-])c1
O=C(CC1NCCNC1=O)Nc1cccc([N+](=O)[O-])c1
oxido-oxo-[3-[[2-(3-oxopiperazin-2-yl)acetyl]amino]phenyl]azanium