Task: Answer the multiple choice question.
Query: Which drug has a 2.240\% 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 additional words.
Options:
a: COc1cccc(N2CC(=O)Nc3c(oc4nc(-c5ccccc5)cc(C)c34)C2=O)c1
b: O=c1c2ccccc2oc2nc(-c3cccs3)n(CCc3ccccc3)c(=O)c12
c: CC(Oc1ccc(Cl)cc1)c1ccn[nH]1
Answer: b. O=c1c2ccccc2oc2nc(-c3cccs3)n(CCc3ccccc3)c(=O)c12
{#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=c1c2ccccc2oc2nc(-c3cccs3)n(CCc3ccccc3)c(=O)c12
O=c1c2ccccc2oc2nc(-c3cccs3)n(CCc3ccccc3)c(=O)c12
3-(2-phenylethyl)-2-(thiophen-2-yl)chromeno[2,3-d]pyrimidine-4,5-dione