Task: Answer the multiple choice question.
Query: Which drug has a 0.672\% 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 other words.
Options:
a: CCOc1ccc(C(C(=O)NCC2CCCO2)N(C(=O)c2snc(C(N)=O)c2N)c2ccc3c(c2)OCCO3)cc1
b: O=C(N/N=C/c1cccnc1)c1ccccc1[N+](=O)[O-]
c: CCc1n[nH]c(CCN)n1.Cl
d: CC(C)N(C)CCOC(=O)/C=C/c1ccccc1.Cl
Answer: b. O=C(N/N=C/c1cccnc1)c1ccccc1[N+](=O)[O-]
{#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(N/N=C/c1cccnc1)c1ccccc1[N+](=O)[O-]
O=C(N/N=C/c1cccnc1)c1ccccc1[N+](=O)[O-]
2-nitro-N-[(E)-pyridin-3-ylmethylideneamino]benzamide