Problem statement: Answer the multiple choice question.
Query: Which compound exhibits a -5.402\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
(a) CCN1CCN(Cc2cc(Br)cc(Br)c2O)CC1
(b) CN(C)S(=O)(=O)c1cccc(NC(=O)COC(=O)c2ccc([N+](=O)[O-])o2)c1
(c) Cc1cccc(C(=O)N[C@H](C(=O)Nc2nccs2)C(C)C)c1
(d) COc1ccc(-c2cn[nH]c2-c2ccc(OCc3ccc([N+](=O)[O-])cc3)cc2O)cc1
(e) COc1ccccc1/C=C1\SC(=S)N(CC(=O)NC2CCS(=O)(=O)C2)C1=O
Answer: a. CCN1CCN(Cc2cc(Br)cc(Br)c2O)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#}
CCN1CCN(Cc2cc(Br)cc(Br)c2O)CC1
CCN1CCN(Cc2cc(Br)cc(Br)c2O)CC1
2,4-dibromo-6-[(4-ethylpiperazin-1-yl)methyl]phenol