Task: Answer the multiple-choice question.
Question: Which drug has a -20.719% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] CCc1nc(N)nc(N)c1-c1ccc(Cl)cc1
[b] Cc1cc(C)cc(Oc2ccccc2/C=C\C(=O)O)c1
Answer: a. CCc1nc(N)nc(N)c1-c1ccc(Cl)cc1
{#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#}
CCc1nc(N)nc(N)c1-c1ccc(Cl)cc1
CCc1nc(N)nc(N)c1-c1ccc(Cl)cc1
5-(4-chlorophenyl)-6-ethylpyrimidine-2,4-diamine