Task: Answer the multiple choice question.
Question: Which drug exhibits a 1.889\% human ether-à-go-go related gene (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) CN1CCc2c(sc(NC(=O)Cc3ccccc3)c2C#N)C1.Cl
b) O=C(NC1CCCCC1)C(c1ccncc1)N(Cc1ccccc1)C(=O)c1ccc(-c2ccccc2)[nH]1
c) Cn1cnnc1SCCn1c(N2CCCCC2)nc2c1c(=O)[nH]c(=O)n2C
d) O=C(OCc1ccc(Cl)c(Cl)c1)c1ccccn1
Answer: a. CN1CCc2c(sc(NC(=O)Cc3ccccc3)c2C#N)C1.Cl
{#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#}
CN1CCc2c(sc(NC(=O)Cc3ccccc3)c2C#N)C1.Cl
CN1CCc2c(sc(NC(=O)Cc3ccccc3)c2C#N)C1.Cl
N-(3-cyano-6-methyl-5,7-dihydro-4H-thieno[2,3-c]pyridin-2-yl)-2-phenylacetamide;hydrochloride