Task: Answer the multiple choice question.
Query: Which drug has a 4.501\% 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) CC(=O)OC(C(=O)NC1CCCCC1)c1ccc(Cl)c(Cl)c1
(b) O=C(c1ccccc1)c1cc[n+]([O-])cc1
(c) Cc1cc(C)nc(SCC(=O)NCC2COc3ccccc3O2)n1
(d) CC(C)N1CCc2c(sc(NC(=O)CN3C(=O)c4ccccc4C3=O)c2C(N)=O)C1.Cl
Answer: b. O=C(c1ccccc1)c1cc[n+]([O-])cc1
{#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(c1ccccc1)c1cc[n+]([O-])cc1
O=C(c1ccccc1)c1cc[n+]([O-])cc1
(1-oxidopyridin-1-ium-4-yl)-phenylmethanone