Problem statement: Answer the multiple choice question.
Query: Which drug has a -27.678\% 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 additional words.
Options:
a: CCOc1ccc(N2CC(C(=O)NCCc3ccc(F)cc3)CC2=O)cc1
b: CC(=O)NNC(=O)CC(=O)Nc1nc(C23CC4CC(CC(C4)C2)C3)cs1
c: O=C(NCCCC(=O)N1CCOCC1)c1cccnc1
d: [O-][Cl+3]([O-])([O-])[O-].c1ccc(-c2cc(-c3ccccc3)[n+](-c3ccccc3)c(-c3ccccc3)c2)cc1
Answer: d. [O-][Cl+3]([O-])([O-])[O-].c1ccc(-c2cc(-c3ccccc3)[n+](-c3ccccc3)c(-c3ccccc3)c2)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-][Cl+3]([O-])([O-])[O-].c1ccc(-c2cc(-c3ccccc3)[n+](-c3ccccc3)c(-c3ccccc3)c2)cc1
[O-][Cl+3]([O-])([O-])[O-].c1ccc(-c2cc(-c3ccccc3)[n+](-c3ccccc3)c(-c3ccccc3)c2)cc1
1,2,4,6-tetraphenylpyridin-1-ium;perchlorate