Task: Answer the MCQ question.
Query: Which compound has a -4.234\% 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 additional words.
Options:
a O=C(CCNC(=O)c1ccc([N+](=O)[O-])cc1)Nc1ccccc1N1CCOCC1
b Cc1ccc(NC(=O)COC(=O)CCC(=O)c2ccc(Cl)cc2)cc1S(=O)(=O)N(C)C
c Cc1ccc(S(=O)(=O)N2CCN(C(=O)c3cccc(-n4cccc4)c3)CC2)cc1
d COC(=O)c1ccc(COC(=O)Cc2n[nH]c(=O)c3ccccc23)cc1
Answer: a. O=C(CCNC(=O)c1ccc([N+](=O)[O-])cc1)Nc1ccccc1N1CCOCC1
{#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(CCNC(=O)c1ccc([N+](=O)[O-])cc1)Nc1ccccc1N1CCOCC1
O=C(CCNC(=O)c1ccc([N+](=O)[O-])cc1)Nc1ccccc1N1CCOCC1
N-[3-(2-morpholin-4-ylanilino)-3-oxopropyl]-4-nitrobenzamide