Task: Answer the MCQ question.
Question: Which drug exhibits a -0.835\% 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: COc1cccc(NCc2ccc([N+](=O)[O-])s2)c1
b: CC(C)(C)c1ccc(Oc2ccc(N)cn2)cc1
c: Cc1ccc(NC2CCCN(C(=O)c3cnc4ccccn4c3=O)C2)cc1C
d: COc1ccc2c(c1)CC/C(=C/c1ccco1)C2=O
Answer: a. COc1cccc(NCc2ccc([N+](=O)[O-])s2)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#}
COc1cccc(NCc2ccc([N+](=O)[O-])s2)c1
COc1cccc(NCc2ccc([N+](=O)[O-])s2)c1
3-methoxy-N-[(5-nitrothiophen-2-yl)methyl]aniline