Task: Answer the multiple choice question.
Query: Which drug exhibits a 16.161\% 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. N#Cc1c(N2CCCC2)ccc(Br)c1Cl
b. O=C(O)C(=O)O.OC(COC1CCCCC1)C[NH+]1CCCCC1
c. O=C1CCC/C(=N/NC(=O)c2ccc(CN3c4cccc5cccc(c45)S3(=O)=O)cc2)C1
d. Cc1cc(NC(=O)CSCC(=O)Nc2nc3ccc(F)cc3s2)no1
Answer: a. N#Cc1c(N2CCCC2)ccc(Br)c1Cl
{#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#}
N#Cc1c(N2CCCC2)ccc(Br)c1Cl
N#Cc1c(N2CCCC2)ccc(Br)c1Cl
3-bromo-2-chloro-6-pyrrolidin-1-ylbenzonitrile