Task: Answer the MCQ question.
Query: Which compound exhibits a 6.874\% 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, c, or d without using any additional words.
Options:
[a] O=C(/C=C/c1ccccc1[N+](=O)[O-])NCCCN1CCCC1=O
[b] Cc1cc(=O)oc2cc(OCC(=O)NC3CC(C)(C)NC(C)(C)C3)c(Cl)cc12
[c] O=C(NCCc1ccccc1)c1ccccc1Cl
[d] COC(=O)c1sccc1NS(=O)(=O)c1ccc(F)cc1F
Answer: c. O=C(NCCc1ccccc1)c1ccccc1Cl
{#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#}
O=C(NCCc1ccccc1)c1ccccc1Cl
O=C(NCCc1ccccc1)c1ccccc1Cl
2-chloro-N-(2-phenylethyl)benzamide