Task: Answer the multiple choice question.
Question: Which compound exhibits a 4.504% 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 other words.
Options:
a: c1ccc2c(c1)ccc1ncccc12
b: COc1ccc(C2=NOC(C(=O)NCc3ccc(F)cc3)C2)cc1
c: CCOC(=O)C(=O)NCc1ccc(/C=C2/N=C(C)C(C(=O)OCC)=C2O)o1
d: COc1ccc(OCC(O)Cn2cnc(-c3ccc(Br)cc3)c2)cc1
Answer: a. c1ccc2c(c1)ccc1ncccc12
{#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#}
c1ccc2c(c1)ccc1ncccc12
c1ccc2c(c1)ccc1ncccc12
benzo[f]quinoline