Task: Answer the MCQ question.
Query: Which compound exhibits a 19.682% hERG inhibition at 10uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) CCN1C(=O)C2CCCCN2c2ccc(C(=O)NCCOC)cc21
(b) COc1ccc(-c2cc3ncnc(Cl)c3s2)cc1
Answer: b. COc1ccc(-c2cc3ncnc(Cl)c3s2)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#}
COc1ccc(-c2cc3ncnc(Cl)c3s2)cc1
COc1ccc(-c2cc3ncnc(Cl)c3s2)cc1
4-chloro-6-(4-methoxyphenyl)thieno[3,2-d]pyrimidine