Problem statement: Answer the multiple choice question.
Question: Which drug exhibits a -3.255% 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 CCN1CCc2[nH]c3ccccc3c2C1
b CCOC(=O)C1=C(C)NC(SC)=NC1c1ccccc1.I
c CCCCn1nc(C(=O)NCC(=O)Nc2c(C)cccc2C)c2ccccc2c1=O
d CCCc1ccc2oc(C(=O)N3CCN(CC(=O)NC(C)C)CC3)c(C)c2c1
Answer: a. CCN1CCc2[nH]c3ccccc3c2C1
{#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#}
CCN1CCc2[nH]c3ccccc3c2C1
CCN1CCc2[nH]c3ccccc3c2C1
2-ethyl-1,3,4,5-tetrahydropyrido[4,3-b]indole