Task: Answer the multiple choice question.
Query: Which compound exhibits a 1.469\% 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 other words.
Options:
(a) Cc1cc(C)cc(NC(=O)CSc2nnc(CNC(=O)c3cccs3)o2)c1
(b) COc1ccccc1-c1ccc(Nc2ccc(C(=O)N3CCOCC3)cc2)nn1
(c) COc1ccc(Cl)cc1-c1n[nH]c(=S)o1
(d) Brc1ccc(OCCOCCN2CCOCC2)cc1
Answer: b. COc1ccccc1-c1ccc(Nc2ccc(C(=O)N3CCOCC3)cc2)nn1
{#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#}
[4-[[6-(2-methoxyphenyl)pyridazin-3-yl]amino]phenyl]-morpholin-4-ylmethanone