Problem statement: Answer the multiple choice question.
Query: Which drug exhibits a 21.951\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a O=C(CN1C(=O)NC2(CCc3ccccc3C2)C1=O)Nc1ccc(F)cc1
b O=C(Nc1nccs1)c1cccc2ccccc12
c CCCNC(=O)c1[nH]c(C)c(C(C)=O)c1C
Answer: c. CCCNC(=O)c1[nH]c(C)c(C(C)=O)c1C
{#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#}
CCCNC(=O)c1[nH]c(C)c(C(C)=O)c1C
CCCNC(=O)c1[nH]c(C)c(C(C)=O)c1C
4-acetyl-3,5-dimethyl-N-propyl-1H-pyrrole-2-carboxamide