Problem statement: Answer the multiple choice question.
Question: Which drug has a 4.193\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
(a) COc1ccc2nc(NCc3cccnc3)sc2c1
(b) CCCn1nnnc1NCc1cccc(OC)c1OCC
(c) O=C(COc1ccccc1)N1CCN(c2ncccn2)CC1
Answer: b. CCCn1nnnc1NCc1cccc(OC)c1OCC
{#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#}
CCCn1nnnc1NCc1cccc(OC)c1OCC
CCCn1nnnc1NCc1cccc(OC)c1OCC
N-[(2-ethoxy-3-methoxyphenyl)methyl]-1-propyltetrazol-5-amine