Task: Answer the multiple-choice question.
Question: Which drug exhibits a 12.978\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a.) O=c1c([N+](=O)[O-])cc(C(F)(F)F)cn1Cc1c(Cl)cccc1Cl
b.) CCCCN1CC(O)=C(c2nc3ccccc3s2)C1=N
Answer: a. O=c1c([N+](=O)[O-])cc(C(F)(F)F)cn1Cc1c(Cl)cccc1Cl
{#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=c1c([N+](=O)[O-])cc(C(F)(F)F)cn1Cc1c(Cl)cccc1Cl
O=c1c([N+](=O)[O-])cc(C(F)(F)F)cn1Cc1c(Cl)cccc1Cl
1-[(2,6-dichlorophenyl)methyl]-3-nitro-5-(trifluoromethyl)pyridin-2-one