Task: Answer the MCQ question.
Question: Which compound exhibits a 5.907\% human ether-à-go-go related gene (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) Cc1ccc2[nH]c(-c3ccccc3)cc(=O)c2c1
(b) COCC(=O)Nc1ccc(C(C)C)cc1
(c) Cc1cc(C)cc(OCC(=O)NCc2nc(-c3ccccc3)no2)c1
(d) CCNc1sc(C(=O)c2cccs2)c(N)c1C#N
Answer: d. CCNc1sc(C(=O)c2cccs2)c(N)c1C#N
{#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-amino-2-(ethylamino)-5-(thiophene-2-carbonyl)thiophene-3-carbonitrile