Problem statement: Answer the multiple choice question.
Query: Which drug exhibits a 21.766\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
a NNC(=O)c1[nH]c2ccccc2c1-c1ccccc1
b COC(=O)c1cc(NC2c3ccccc3C(=O)N2c2cccnc2)cc(C(=O)OC)c1
c Cc1cc(C(=O)N2CCCC(C(=O)c3cc(F)ccc3F)C2)c(C)o1
d CN(Cc1ccccc1)C(=O)c1ccc(NC(=O)Cc2cccc(NC(=O)C3CCCN(C(=O)CCc4ccccc4)C3)c2)cc1
e COC(=O)[C@H](C)NC(=O)Nc1ccc(OC)cc1OC
Answer: a. NNC(=O)c1[nH]c2ccccc2c1-c1ccccc1
{#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#}
NNC(=O)c1[nH]c2ccccc2c1-c1ccccc1
NNC(=O)c1[nH]c2ccccc2c1-c1ccccc1
3-phenyl-1H-indole-2-carbohydrazide