Task: Answer the multiple-choice question.
Question: Which drug exhibits a 15.151% human ether-à-go-go related gene (hERG) inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a. CCOC(=O)N1CCN(c2ccccc2OC)CC1
b. COc1ccc(C(CNC(=O)COc2cccc(C(F)(F)F)c2)N2CCCC2)cc1
c. CCOC(=O)c1ccc(N2C(=O)c3n[nH]c(C)c3C2c2ccccn2)cc1
d. O=C(NCc1nc2ccccc2[nH]1)C1=C[C@H](c2ccccc2)C[C@H](OCCCCO)O1
Answer: a. CCOC(=O)N1CCN(c2ccccc2OC)CC1
{#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#}
CCOC(=O)N1CCN(c2ccccc2OC)CC1
CCOC(=O)N1CCN(c2ccccc2OC)CC1
ethyl 4-(2-methoxyphenyl)piperazine-1-carboxylate