Task: Answer the multiple choice question.
Query: Which drug exhibits a -5.172% 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 additional words.
Options:
a COc1ccc(-n2c(=O)cc(N3CCOCC3)[nH]c2=O)cc1
b O=C(COC(=O)C1CCCCC1)Nc1ccc(S(=O)(=O)N2CCOCC2)cc1
c CC(C)(C)OC(=O)CC[C@H](NC(=O)C1CCN(C(=O)OC(C)(C)C)CC1)c1nnc([C@H](CCCCNC(=O)OC(C)(C)C)NC(=O)OC(C)(C)C)o1
d O=C1OC(/C(=C\NCc2ccccc2)[N+](=O)[O-])c2ccccc21
Answer: d. O=C1OC(/C(=C\NCc2ccccc2)[N+](=O)[O-])c2ccccc21
{#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=C1OC(/C(=C\NCc2ccccc2)[N+](=O)[O-])c2ccccc21
O=C1OC(/C(=C\NCc2ccccc2)[N+](=O)[O-])c2ccccc21
3-[(E)-2-(benzylamino)-1-nitroethenyl]-3H-2-benzofuran-1-one