Task: Answer the multiple choice question.
Question: Which drug exhibits a -18.273\% 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 Cc1ccn2cc(CCNS(=O)(=O)c3ccc([N+](=O)[O-])cc3)nc2c1
b Fc1ccc(-n2cc(-c3ccccc3)c3c(NN4CCOCC4)ncnc32)cc1
c O=C(NC1CCCC1)C1C2C=CC3(CN(Cc4cccs4)C(=O)C13)O2
d NNC(=O)C(=O)/C=C1\NC2(CCCC2)Cc2ccccc21
Answer: a. Cc1ccn2cc(CCNS(=O)(=O)c3ccc([N+](=O)[O-])cc3)nc2c1
{#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#}
Cc1ccn2cc(CCNS(=O)(=O)c3ccc([N+](=O)[O-])cc3)nc2c1
Cc1ccn2cc(CCNS(=O)(=O)c3ccc([N+](=O)[O-])cc3)nc2c1
N-[2-(7-methylimidazo[1,2-a]pyridin-2-yl)ethyl]-4-nitrobenzenesulfonamide