Task: Answer the multiple choice question.
Question: Which compound has a -22.024% human ether-à-go-go related gene (hERG) inhibition at 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a C=CCn1c(-c2ccccc2)cc(-c2ccccc2)nc1=O
b Cc1nn(CC(=O)NCc2ccccc2)c(=O)c2cccn12
c CC1CN(Cc2c(O)ccc3c(=O)c(-c4ccccc4)coc23)CC(C)O1.Cl
d COC(=O)C(c1ccccc1)C1(O)CC(C)N(C)CC1C
Answer: a. C=CCn1c(-c2ccccc2)cc(-c2ccccc2)nc1=O
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
C=CCn1c(-c2ccccc2)cc(-c2ccccc2)nc1=O
C=CCn1c(-c2ccccc2)cc(-c2ccccc2)nc1=O
4,6-diphenyl-1-prop-2-enylpyrimidin-2-one