Task: Answer the multiple-choice question.
Question: Which compound has a 2.542\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
[a] O=C(NCCc1cccs1)C1CC(c2ccc([N+](=O)[O-])cc2)=NO1
[b] O=C(CNc1cccc([N+](=O)[O-])c1)N/N=C/c1ccc([N+](=O)[O-])o1
[c] C[N+]1(CC(=O)OCCCc2ccccc2)CCCC1.[I-]
[d] Cc1ccc(S(=O)(=O)N2CCN(C(=O)CSC(=S)N3CCCC3)CC2)c(C)c1
[e] COc1ccccc1CNC(=O)COC(=O)c1ccccn1
Answer: b. O=C(CNc1cccc([N+](=O)[O-])c1)N/N=C/c1ccc([N+](=O)[O-])o1
{#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(CNc1cccc([N+](=O)[O-])c1)N/N=C/c1ccc([N+](=O)[O-])o1
O=C(CNc1cccc([N+](=O)[O-])c1)N/N=C/c1ccc([N+](=O)[O-])o1
2-(3-nitroanilino)-N-[(E)-(5-nitrofuran-2-yl)methylideneamino]acetamide