Task: Answer the MCQ question.
Question: Which drug exhibits a -8.372\% 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) COC(=O)CSc1nc2sc(C)c(C)c2c(=O)n1C
b) CCOc1ccc2nc(NC(=O)CSc3nc(SC)ns3)sc2c1
c) NC(=S)N/N=C1\CCOc2ccc(Cl)cc21
d) CC(C)(c1ccc(O)cc1)c1ccc(O)cc1
Answer: a. COC(=O)CSc1nc2sc(C)c(C)c2c(=O)n1C
{#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#}
COC(=O)CSc1nc2sc(C)c(C)c2c(=O)n1C
COC(=O)CSc1nc2sc(C)c(C)c2c(=O)n1C
methyl 2-(3,5,6-trimethyl-4-oxothieno[2,3-d]pyrimidin-2-yl)sulfanylacetate