Task: Answer the multiple choice question.
Query: Which compound exhibits a 18.988\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) Cc1ccc(CCN2CC(C(=O)NCCc3ccccc3)CC2=O)cc1
(b) CCCc1nc2ccccc2c(=O)n1-c1ccc(O)cc1
Answer: b. CCCc1nc2ccccc2c(=O)n1-c1ccc(O)cc1
{#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#}
CCCc1nc2ccccc2c(=O)n1-c1ccc(O)cc1
CCCc1nc2ccccc2c(=O)n1-c1ccc(O)cc1
3-(4-hydroxyphenyl)-2-propylquinazolin-4-one