Problem statement: Answer the multiple-choice question.
Query: Which drug has a 18.080\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
a CC1=CC2=NC(=O)/C(=C\c3cc(C)n(-c4ccc(F)cc4)c3C)C(=N)N2O1
b Cc1ccc(S(=O)(=O)NC(=O)NC(=O)N(C)S(=O)(=O)c2ccc(C)cc2)cc1
c Cc1ccc(CN(Cc2cc3cccc(C)c3[nH]c2=O)C(=S)NCCCN(C)C)cc1
d CCCC(=O)NC(NC(=S)Nc1ccc(N=Nc2ccccc2)cc1)C(Cl)(Cl)Cl
e O=C(C[n+]1ccccn1)c1ccccc1.[Br-]
Answer: e. O=C(C[n+]1ccccn1)c1ccccc1.[Br-]
{#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(C[n+]1ccccn1)c1ccccc1.[Br-]
O=C(C[n+]1ccccn1)c1ccccc1.[Br-]
1-phenyl-2-pyridazin-1-ium-1-ylethanone;bromide