Problem statement: Answer the MCQ question.
Query: Which drug has a -13.738\% 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) CC(CCc1ccccc1)NC(=O)C1CCN(S(=O)(=O)c2cnc[nH]2)CC1
(b) CCOC(=O)C1=C(N)Oc2cc(O)ccc2C1c1ccc([N+](=O)[O-])cc1
(c) N#C/C(=C\c1ccc(OCc2cccc(C(=O)O)c2)cc1)C(=O)NCc1ccco1
(d) COC(=O)C(C)N(C(=O)c1ccc(Cl)cc1)c1c(C)cccc1C
Answer: b. CCOC(=O)C1=C(N)Oc2cc(O)ccc2C1c1ccc([N+](=O)[O-])cc1
{#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#}
CCOC(=O)C1=C(N)Oc2cc(O)ccc2C1c1ccc([N+](=O)[O-])cc1
CCOC(=O)C1=C(N)Oc2cc(O)ccc2C1c1ccc([N+](=O)[O-])cc1
ethyl 2-amino-7-hydroxy-4-(4-nitrophenyl)-4H-chromene-3-carboxylate