Problem statement: Answer the multiple choice question.
Query: Which drug has a 1.543\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a. O=C(NCc1ccco1)c1nc2ncccn2n1
b. O=C(N/N=C/c1ccc(Cl)cc1Cl)Nc1ccccc1
c. COc1ccc(/C=N/Nc2nc(C)c([N+](=O)[O-])c(N(C)c3ccccc3)n2)cc1OC
Answer: c. COc1ccc(/C=N/Nc2nc(C)c([N+](=O)[O-])c(N(C)c3ccccc3)n2)cc1OC
{#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#}
2-N-[(E)-(3,4-dimethoxyphenyl)methylideneamino]-4-N,6-dimethyl-5-nitro-4-N-phenylpyrimidine-2,4-diamine