Task: Answer the multiple choice question.
Query: Which drug has a 6.678\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
(a) CCOc1cc(C2CC(=O)NC(SCC)=C2C#N)ccc1O
(b) O=C(Nc1ccc(F)cc1F)c1csc(-c2cccs2)n1
(c) CCSc1nnc(NC(=O)c2cccc(S(=O)(=O)N(C)c3ccccc3)c2)s1
(d) N#Cc1ccccc1CSc1ccc(-c2nc3ccccc3[nH]2)cn1
Answer: a. CCOc1cc(C2CC(=O)NC(SCC)=C2C#N)ccc1O
{#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#}
CCOc1cc(C2CC(=O)NC(SCC)=C2C#N)ccc1O
CCOc1cc(C2CC(=O)NC(SCC)=C2C#N)ccc1O
4-(3-ethoxy-4-hydroxyphenyl)-6-ethylsulfanyl-2-oxo-3,4-dihydro-1H-pyridine-5-carbonitrile