Problem statement: Answer the multiple choice question.
Question: Which drug exhibits a 5.180\% 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 other words.
Options:
a O=C1CN(C(=S)Nc2ccccc2Cl)CCN1
b O=[N+]([O-])c1ccc(-c2csc(Nc3ccccc3)[n+]2Cc2ccccc2)cc1.[Br-]
c O=C(C1CCC(=O)N1Cc1cccs1)N1CCOCC1
d Cn1c(=O)[nH]c(=O)c2[nH]c(NCCCN3CCOCC3)nc21
Answer: a. O=C1CN(C(=S)Nc2ccccc2Cl)CCN1
{#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#}
O=C1CN(C(=S)Nc2ccccc2Cl)CCN1
O=C1CN(C(=S)Nc2ccccc2Cl)CCN1
N-(2-chlorophenyl)-3-oxopiperazine-1-carbothioamide