Task: Answer the multiple-choice question.
Query: Which drug has a 2.714\% 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 other words.
Options:
a CC(=O)Nc1ccc(NC(=O)c2cc[n+]([O-])cc2)cc1
b CC1CCN(CCCNS(=O)(=O)c2cc(Br)cc3c2N(C(=O)C2CC2)CC3)CC1
c C=CCn1c(N2CCN(c3ccc(OC)cc3)CC2)nc2c1c(=O)n(C)c(=O)n2C
d CC(C)C(=O)N1CCN(c2ccc(NC(=O)COc3ccccc3[N+](=O)[O-])cc2)CC1
Answer: c. C=CCn1c(N2CCN(c3ccc(OC)cc3)CC2)nc2c1c(=O)n(C)c(=O)n2C
{#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#}
C=CCn1c(N2CCN(c3ccc(OC)cc3)CC2)nc2c1c(=O)n(C)c(=O)n2C
C=CCn1c(N2CCN(c3ccc(OC)cc3)CC2)nc2c1c(=O)n(C)c(=O)n2C
8-[4-(4-methoxyphenyl)piperazin-1-yl]-1,3-dimethyl-7-prop-2-enylpurine-2,6-dione