Problem statement: Answer the multiple choice question.
Query: Which drug exhibits a 3.310\% 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(NN=C1CCC(c2ccccc2)CC1)c1ccccc1-n1cccc1
b. O=C(NCCN1CCc2ccccc2C1)Nc1ccc([N+](=O)[O-])cc1
c. O=C(COC(=O)c1cc(Cl)ccc1O)NNC(=O)c1ccc([N+](=O)[O-])cc1
d. CCOc1ccc(NC(=S)Nc2cccnc2)cc1
Answer: c. O=C(COC(=O)c1cc(Cl)ccc1O)NNC(=O)c1ccc([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#}
O=C(COC(=O)c1cc(Cl)ccc1O)NNC(=O)c1ccc([N+](=O)[O-])cc1
O=C(COC(=O)c1cc(Cl)ccc1O)NNC(=O)c1ccc([N+](=O)[O-])cc1
[2-[2-(4-nitrobenzoyl)hydrazinyl]-2-oxoethyl] 5-chloro-2-hydroxybenzoate