Problem statement: Answer the multiple-choice question.
Query: Which drug exhibits a 13.542\% 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 CC#CC[N+](C)(C)CC(=O)c1ccccc1.[Br-]
b COc1cc(NC(=O)c2cccnc2SC)cc(OC)c1
c CS(=O)(=O)Nc1ccc(C(=O)NCC2CCCO2)cc1
d Cc1sc2ncn(C(C)C(=O)OC3CCCCC3)c(=O)c2c1C
e O=C(/C=C/c1ccc(Cl)cc1)Nc1ccc(N2CCOCC2)cc1
Answer: a. CC#CC[N+](C)(C)CC(=O)c1ccccc1.[Br-]
{#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#}
but-2-ynyl-dimethyl-phenacylazanium;bromide