Task: Answer the multiple choice question.
Question: Which drug has a 4.177\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
[a] O=C(c1ccc(S(=O)(=O)NCC2CCCO2)cc1)N1CCc2ccccc21
[b] C=CCSC1=C(C#N)C(c2ccccc2OC)CC(=O)N1
[c] Cc1ccc(-n2c(N)c(C#N)c(-c3ccccc3)c(C#N)c2=O)cc1
Answer: b. C=CCSC1=C(C#N)C(c2ccccc2OC)CC(=O)N1
{#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#}
C=CCSC1=C(C#N)C(c2ccccc2OC)CC(=O)N1
C=CCSC1=C(C#N)C(c2ccccc2OC)CC(=O)N1
4-(2-methoxyphenyl)-2-oxo-6-prop-2-enylsulfanyl-3,4-dihydro-1H-pyridine-5-carbonitrile