Problem statement: Answer the multiple-choice question.
Query: Which compound exhibits a 4.610\% 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 additional words.
Options:
(a) NC(=O)NCCc1ccccc1
(b) Cc1cc(C(=O)CN2C(=O)NC3(CCCCC3C)C2=O)c(C)n1Cc1cccs1
(c) Cc1cc(C)cc(N(CCC#N)C(=O)COC(=O)c2ccc(OCc3c(C)noc3C)cc2)c1
Answer: a. NC(=O)NCCc1ccccc1
{#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#}
NC(=O)NCCc1ccccc1
NC(=O)NCCc1ccccc1
2-phenylethylurea