Task: Answer the multiple choice question.
Query: Which drug exhibits a 4.267% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a. CCOC(=O)c1sc(NC(=O)c2c(CC)noc2C)nc1C
b. NS(=O)(=O)c1ccc(NNC(=O)c2ccccc2C(=O)O)cc1
c. CCOC(=O)c1c(CSc2ccsc2)n(C)c2cc(Br)c(O)c(CN(C)C)c12.Cl
d. O=C(OCc1nc2scc(-c3ccccc3)c2c(=O)[nH]1)c1cccc([N+](=O)[O-])c1
Answer: d. O=C(OCc1nc2scc(-c3ccccc3)c2c(=O)[nH]1)c1cccc([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_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=C(OCc1nc2scc(-c3ccccc3)c2c(=O)[nH]1)c1cccc([N+](=O)[O-])c1
O=C(OCc1nc2scc(-c3ccccc3)c2c(=O)[nH]1)c1cccc([N+](=O)[O-])c1
(4-oxo-5-phenyl-3H-thieno[2,3-d]pyrimidin-2-yl)methyl 3-nitrobenzoate