Task: Answer the MCQ question.
Query: Which compound exhibits a -81.441\% 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, c, or d without using any additional words.
Options:
a: CCc1ccc(Oc2cc(C)nc(N)n2)cc1
b: O=C(/C=C/c1ccc(Cl)cc1)N1CCN(c2ccc(Cl)cc2[N+](=O)[O-])CC1
c: Cc1cccc(C(=O)NC2=NCCS2)c1
d: Cn1c(CNC(=O)c2ccccc2F)nnc1SCc1nc2ccccc2c(=O)[nH]1
Answer: b. O=C(/C=C/c1ccc(Cl)cc1)N1CCN(c2ccc(Cl)cc2[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(c2ccc(Cl)cc2[N+](=O)[O-])CC1
O=C(/C=C/c1ccc(Cl)cc1)N1CCN(c2ccc(Cl)cc2[N+](=O)[O-])CC1
(E)-1-[4-(4-chloro-2-nitrophenyl)piperazin-1-yl]-3-(4-chlorophenyl)prop-2-en-1-one