Task: Answer the multiple-choice question.
Question: Which compound exhibits a 2.821% human ether-à-go-go related gene (hERG) inhibition at 10uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a: CCCCn1c(O)c(C(CC)=NCc2ccc3c(c2)OCO3)c(=O)[nH]c1=O
b: CCCc1nc(N)sc1C(=O)OCC
c: COc1cc(C2NC(=O)CCC2[N+](=O)[O-])cc(OC)c1OC
Answer: b. CCCc1nc(N)sc1C(=O)OCC
{#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#}
CCCc1nc(N)sc1C(=O)OCC
CCCc1nc(N)sc1C(=O)OCC
ethyl 2-amino-4-propyl-1,3-thiazole-5-carboxylate