Task: Answer the multiple choice question.
Query: Which drug exhibits a 12.147\% 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) O=C(/C=C/c1ccc(Cl)cc1)N1CCN(c2c(Cl)cccc2[N+](=O)[O-])CC1
(b) Cc1ccc(N=C2NC(=O)C(CC(=O)NCc3ccccc3)S2)cc1C
Answer: a. O=C(/C=C/c1ccc(Cl)cc1)N1CCN(c2c(Cl)cccc2[N+](=O)[O-])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#}
O=C(/C=C/c1ccc(Cl)cc1)N1CCN(c2c(Cl)cccc2[N+](=O)[O-])CC1
O=C(/C=C/c1ccc(Cl)cc1)N1CCN(c2c(Cl)cccc2[N+](=O)[O-])CC1
(E)-1-[4-(2-chloro-6-nitrophenyl)piperazin-1-yl]-3-(4-chlorophenyl)prop-2-en-1-one