Problem statement: Answer the multiple choice question.
Query: Which drug has a 21.521\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a) Brc1ccccc1-c1nnc2sc(-c3ccc4c(c3)OCCO4)nn12
b) Nc1nnc(/C=C/c2ccccc2)s1
c) Cc1ccc(-n2c(O)c(C=NCCN3CCOCC3)c(=O)[nH]c2=O)cc1
d) N#CC(c1ccc(=O)[nH]n1)c1ccc(Cl)cc1Cl
Answer: b. Nc1nnc(/C=C/c2ccccc2)s1
{#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#}
Nc1nnc(/C=C/c2ccccc2)s1
Nc1nnc(/C=C/c2ccccc2)s1
5-[(E)-2-phenylethenyl]-1,3,4-thiadiazol-2-amine