Task: Answer the MCQ question.
Question: Which compound exhibits a 16.660\% 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, or c without using any other words.
Options:
(a) Fc1cccc(F)c1CN1CCN(c2ncccn2)CC1
(b) O=C(CCCC(=O)NCC1CCCO1)NCC1CCCO1
(c) O=C1CC(C(=O)Nc2ccc(Cl)cc2[N+](=O)[O-])C2(CCCCC2)O1
Answer: a. Fc1cccc(F)c1CN1CCN(c2ncccn2)CC1
{#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#}
Fc1cccc(F)c1CN1CCN(c2ncccn2)CC1
Fc1cccc(F)c1CN1CCN(c2ncccn2)CC1
2-[4-[(2,6-difluorophenyl)methyl]piperazin-1-yl]pyrimidine