Task: Answer the multiple-choice question.
Question: Which drug exhibits a 2.015\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: O=C(NC(Cc1ccc(O)cc1)C(=O)O)/C(=C/c1ccccc1)NC(=O)c1ccccc1
b: CCOC(=O)c1sc(N)c(C(=O)OC)c1C
Answer: b. CCOC(=O)c1sc(N)c(C(=O)OC)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#}
CCOC(=O)c1sc(N)c(C(=O)OC)c1C
CCOC(=O)c1sc(N)c(C(=O)OC)c1C
2-O-ethyl 4-O-methyl 5-amino-3-methylthiophene-2,4-dicarboxylate