Problem statement: Answer the multiple choice question.
Query: Which drug exhibits a -20.515% human ether-à-go-go related gene (hERG) inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a: CCc1cc(=O)oc2cc(OCC(=O)OC)c(Cl)cc12
b: CC(=O)Nc1cccc(NC(=O)c2cc([N+](=O)[O-])ccc2N2CCCCC2)c1
c: Cc1cc(-c2ccc(Cl)cc2)n2ncnc2n1
d: CCN(CC)CCOc1ccccc1C(C)=O.O=C(O)C(=O)O
Answer: a. CCc1cc(=O)oc2cc(OCC(=O)OC)c(Cl)cc12
{#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#}
CCc1cc(=O)oc2cc(OCC(=O)OC)c(Cl)cc12
CCc1cc(=O)oc2cc(OCC(=O)OC)c(Cl)cc12
methyl 2-(6-chloro-4-ethyl-2-oxochromen-7-yl)oxyacetate