Task: Answer the multiple-choice question.
Question: Which compound exhibits a 20.694\% 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) O=C(COc1ccc(Cl)cc1Br)Nc1cccc(S(=O)(=O)N2CCCC2)c1
(b) O=C(c1ccccc1[N+](=O)[O-])N1N=C(c2ccccc2)CC1(O)C(F)(F)F
(c) COc1cc(/C=N/NC(=O)c2ccc(CSc3nc4ccccc4[nH]3)cc2)cc(OC)c1OC
(d) O=c1oc2ccccc2c(Nc2ccc(Cl)cc2)c1[N+](=O)[O-]
Answer: b. O=C(c1ccccc1[N+](=O)[O-])N1N=C(c2ccccc2)CC1(O)C(F)(F)F
{#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(c1ccccc1[N+](=O)[O-])N1N=C(c2ccccc2)CC1(O)C(F)(F)F
O=C(c1ccccc1[N+](=O)[O-])N1N=C(c2ccccc2)CC1(O)C(F)(F)F
[5-hydroxy-3-phenyl-5-(trifluoromethyl)-4H-pyrazol-1-yl]-(2-nitrophenyl)methanone