Task: Answer the multiple-choice question.
Query: Which drug has a 3.873\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a: COc1ccc(C(=O)C2CCCN(C(=O)c3cc(C)nc(C)n3)C2)cc1OC
b: CC1(C)c2ccccc2-c2nc3ccccc3cc2C1O
c: Brc1cccc(/C=N/Nc2nn[nH]n2)c1
Answer: b. CC1(C)c2ccccc2-c2nc3ccccc3cc2C1O
{#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#}
CC1(C)c2ccccc2-c2nc3ccccc3cc2C1O
CC1(C)c2ccccc2-c2nc3ccccc3cc2C1O
5,5-dimethyl-6H-benzo[c]acridin-6-ol