Problem statement: Answer the MCQ question.
Query: Which compound has a 2.947\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a Nn1c(SCC(=O)N2CCc3ccccc3C2)nnc1-c1cccs1
b CNC(=O)CN1C(=O)CSc2nc(C)cc(C)c21
Answer: b. CNC(=O)CN1C(=O)CSc2nc(C)cc(C)c21
{#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#}
CNC(=O)CN1C(=O)CSc2nc(C)cc(C)c21
CNC(=O)CN1C(=O)CSc2nc(C)cc(C)c21
2-(6,8-dimethyl-2-oxopyrido[2,3-b][1,4]thiazin-1-yl)-N-methylacetamide