Task: Answer the multiple choice question.
Question: Which drug has a 12.678\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a: COc1ccnc(Oc2ccc(F)cc2)c1C#N
b: CCc1nnc(NC(=O)Cc2cc(OC)c(OC)c(OC)c2)s1
c: O=C(NCc1ccccn1)c1nn(-c2ccccc2)c(=O)c2ccccc12
Answer: a. COc1ccnc(Oc2ccc(F)cc2)c1C#N
{#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#}
COc1ccnc(Oc2ccc(F)cc2)c1C#N
COc1ccnc(Oc2ccc(F)cc2)c1C#N
2-(4-fluorophenoxy)-4-methoxypyridine-3-carbonitrile