Problem statement: Answer the multiple choice question.
Query: Which drug has a 1.919\% 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 S=C(N/N=C/c1ccc(Cl)c(Cl)c1)Nc1ccccc1Cl
b CN(CC(=O)Nc1cccc(F)c1)C(=O)CCCn1c(=O)oc2ccccc21
c CN1CC[n+]2cnc3ccccc3c21.[I-]
d COc1cc(OC)c(OC)cc1CNCCNC(=O)c1ccco1
Answer: a. S=C(N/N=C/c1ccc(Cl)c(Cl)c1)Nc1ccccc1Cl
{#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#}
S=C(N/N=C/c1ccc(Cl)c(Cl)c1)Nc1ccccc1Cl
S=C(N/N=C/c1ccc(Cl)c(Cl)c1)Nc1ccccc1Cl
1-(2-chlorophenyl)-3-[(E)-(4,5-dichlorophenyl)methylideneamino]thiourea