Task: Answer the MCQ question.
Question: Which drug has a 3.178\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
a: Cc1sc2nc(CN3CCCC3)nc(Cl)c2c1C
b: CN(C)c1ccc(C(CNS(=O)(=O)c2cccc([N+](=O)[O-])c2)N2CCOCC2)cc1
c: Cc1ccc(-n2c(-c3cnccn3)n[nH]c2=S)cc1
d: Cc1cnc(NS(=O)(=O)c2ccc(Cl)cc2)c(Br)c1
e: COCCNc1ncnc2c1[nH]c1ccccc12
Answer: a. Cc1sc2nc(CN3CCCC3)nc(Cl)c2c1C
{#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#}
Cc1sc2nc(CN3CCCC3)nc(Cl)c2c1C
Cc1sc2nc(CN3CCCC3)nc(Cl)c2c1C
4-chloro-5,6-dimethyl-2-(pyrrolidin-1-ylmethyl)thieno[2,3-d]pyrimidine