Task: Answer the multiple choice question.
Question: Which drug exhibits a 4.356\% 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 additional words.
Options:
a. CN1/C(=N\O)c2cccc3cccc1c23
b. COc1ccc(/C=C\C(=O)c2c(O)ccc3c(C)cc(=O)oc23)cc1OC
c. CC(=Nc1ccccc1)C1=C(O)CSC1=O
d. S=C(NCc1cccnc1)NCc1cccnc1
Answer: d. S=C(NCc1cccnc1)NCc1cccnc1
{#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#}
S=C(NCc1cccnc1)NCc1cccnc1
S=C(NCc1cccnc1)NCc1cccnc1
1,3-bis(pyridin-3-ylmethyl)thiourea