Problem statement: Answer the MCQ question.
Question: Which drug exhibits a 11.276% hERG inhibition at 10uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: CCn1c(C)c2c(C)nnc(C)c2c1C
b: CCOC(=O)c1ccc(N=C2S/C(=C\c3cc(C)n(-c4cccnc4)c3C)C(=O)N2C)cc1
Answer: a. CCn1c(C)c2c(C)nnc(C)c2c1C
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CCn1c(C)c2c(C)nnc(C)c2c1C
CCn1c(C)c2c(C)nnc(C)c2c1C
6-ethyl-1,4,5,7-tetramethylpyrrolo[3,4-d]pyridazine