Task: Answer the multiple-choice question.
Question: Which compound exhibits a 9.537\% 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 or b without using any other words.
Options:
(a) COC(=O)c1sccc1NC(=O)Nc1cc(C)ccc1OC
(b) Cc1ccnc(NC(=O)c2cccc(S(=O)(=O)NCc3ccccc3)c2)c1
Answer: a. COC(=O)c1sccc1NC(=O)Nc1cc(C)ccc1OC
{#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#}
COC(=O)c1sccc1NC(=O)Nc1cc(C)ccc1OC
COC(=O)c1sccc1NC(=O)Nc1cc(C)ccc1OC
methyl 3-[(2-methoxy-5-methylphenyl)carbamoylamino]thiophene-2-carboxylate