Task: Answer the multiple choice question.
Query: Which drug has a 1.772\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a COc1ccc(CNc2nc3ccccc3n2C(C)C)cc1
b N#C/C(=C\c1c(N(Cc2ccccc2)Cc2ccccc2)nc2ccccn2c1=O)C(N)=O
c O=c1[nH]c(=S)[nH]c2c1C(c1ccc(Br)cc1)c1c([nH]c(=S)[nH]c1=O)O2
d COc1ccc(-c2cc3onc(-c4c(Cl)cccc4Cl)c3c(=O)n2C)cc1
Answer: a. COc1ccc(CNc2nc3ccccc3n2C(C)C)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#}
COc1ccc(CNc2nc3ccccc3n2C(C)C)cc1
COc1ccc(CNc2nc3ccccc3n2C(C)C)cc1
N-[(4-methoxyphenyl)methyl]-1-propan-2-ylbenzimidazol-2-amine