Problem statement: Answer the multiple choice question.
Question: Which compound exhibits a 2.126\% human ether-à-go-go related gene (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(Cc1ccccc1Cl)NC1(O)C(=O)c2ccccc2C1=O
[b] C/C=C/C=N/Nc1nc(-c2ccc([N+](=O)[O-])cc2)cs1
[c] O=C(Nc1ccccc1)c1sccc1Oc1ccc([N+](=O)[O-])cc1F
[d] Cc1ccc(C(=O)CCC(=O)OCC(=O)NNC(=O)c2ccccc2Cl)cc1
Answer: b. C/C=C/C=N/Nc1nc(-c2ccc([N+](=O)[O-])cc2)cs1
{#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#}
C/C=C/C=N/Nc1nc(-c2ccc([N+](=O)[O-])cc2)cs1
C/C=C/C=N/Nc1nc(-c2ccc([N+](=O)[O-])cc2)cs1
N-[(E)-[(E)-but-2-enylidene]amino]-4-(4-nitrophenyl)-1,3-thiazol-2-amine