Task: Answer the MCQ question.
Question: Which compound exhibits a 19.615\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a.) O=c1ccc(-c2ccc(S(=O)(=O)N3CCN(c4ccccc4)CC3)o2)n[nH]1
b.) COc1ccc(CSc2nc(C)cc(C)c2C#N)cc1
Answer: b. COc1ccc(CSc2nc(C)cc(C)c2C#N)cc1
{#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#}
COc1ccc(CSc2nc(C)cc(C)c2C#N)cc1
COc1ccc(CSc2nc(C)cc(C)c2C#N)cc1
2-[(4-methoxyphenyl)methylsulfanyl]-4,6-dimethylpyridine-3-carbonitrile