Problem statement: Answer the multiple-choice question.
Question: Which compound exhibits a 18.025\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] O=C1N/C(=N/c2ccccn2)SC1Cc1ccccc1
[b] Cc1ccccc1CSc1nnc(-c2cnccn2)n1C
[c] Cc1c(NC(=S)Nc2ccccc2C(F)(F)F)cccc1[N+](=O)[O-]
[d] COc1cc(OC)cc(C(=O)NCCC(c2ccccc2)c2ccccc2)c1
Answer: b. Cc1ccccc1CSc1nnc(-c2cnccn2)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#}
Cc1ccccc1CSc1nnc(-c2cnccn2)n1C
Cc1ccccc1CSc1nnc(-c2cnccn2)n1C
2-[4-methyl-5-[(2-methylphenyl)methylsulfanyl]-1,2,4-triazol-3-yl]pyrazine