Task: Answer the multiple choice question.
Question: Which compound has a 21.957% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] O=C(CCc1nc(-c2cccs2)no1)Nc1cnc2ccccc2c1
[b] COc1cc(N)ccc1Cc1ccc(N)cc1OC
[c] O=C(Nc1ccc(Cl)cc1Cl)C1=Cc2ccccc2OC1
[d] N#CC1=C(N)Oc2cc(O)ccc2C1c1ccccc1
Answer: b. COc1cc(N)ccc1Cc1ccc(N)cc1OC
{#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#}
COc1cc(N)ccc1Cc1ccc(N)cc1OC
COc1cc(N)ccc1Cc1ccc(N)cc1OC
4-[(4-amino-2-methoxyphenyl)methyl]-3-methoxyaniline