Problem statement: Answer the multiple choice question.
Query: Which drug exhibits a 15.793\% 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) CC1(C)Cc2[nH]c(=S)c(C#N)cc2CO1
(b) CCCC1C(=O)N(Cc2ccccc2)C(=O)CC1C
(c) Cc1c(C(=O)NCc2ccc3c(c2)OCO3)oc2ccc(S(=O)(=O)N3CCCC3)cc12
(d) O=C(CNS(=O)(=O)c1ccccc1)OCC(=O)c1ccc([N+](=O)[O-])cc1
Answer: a. CC1(C)Cc2[nH]c(=S)c(C#N)cc2CO1
{#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#}
7,7-dimethyl-2-sulfanylidene-5,8-dihydro-1H-pyrano[4,3-b]pyridine-3-carbonitrile