Task: Answer the multiple choice question.
Query: Which compound has a 6.109\% 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 additional words.
Options:
a: CCn1nnc(NC(=O)C(c2ccccc2)c2ccccc2)n1
b: Cc1cc(C)nc(NS(=O)(=O)c2ccc(N3Cc4ccccc4C3=O)cc2)n1
c: COc1cccc(CNc2ccc(Br)cn2)c1O
d: Cc1nn2c(-c3ccccc3)ccnc2c1Br
Answer: c. COc1cccc(CNc2ccc(Br)cn2)c1O
{#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#}
COc1cccc(CNc2ccc(Br)cn2)c1O
COc1cccc(CNc2ccc(Br)cn2)c1O
2-[[(5-bromopyridin-2-yl)amino]methyl]-6-methoxyphenol