Task: Answer the multiple-choice question.
Question: Which compound has a 4.998\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a.) CC(=O)N1CN(S(=O)(=O)c2ccc(C)cc2)CC1C
b.) O=C(N[C@@H](Cc1ccccc1)c1nc2ccccc2[nH]1)c1cc([N+](=O)[O-])ccc1Cl
c.) Cc1[nH]n(-c2ccccc2)c(=O)c1C=Nc1ccc(S(=O)(=O)N=C(N)N)cc1
d.) O=C(NCCc1ccc(Cl)cc1)C12CC3CC(CC(O)(C3)C1)C2
Answer: b. O=C(N[C@@H](Cc1ccccc1)c1nc2ccccc2[nH]1)c1cc([N+](=O)[O-])ccc1Cl
{#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[C@@H](Cc1ccccc1)c1nc2ccccc2[nH]1)c1cc([N+](=O)[O-])ccc1Cl
O=C(N[C@@H](Cc1ccccc1)c1nc2ccccc2[nH]1)c1cc([N+](=O)[O-])ccc1Cl
N-[(1S)-1-(1H-benzimidazol-2-yl)-2-phenylethyl]-2-chloro-5-nitrobenzamide