Task: Answer the multiple-choice question.
Query: Which drug has a 19.923\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) Cc1cccc(N2CCN(c3ccc(C(N)=O)cc3[N+](=O)[O-])CC2)c1C
(b) N#Cc1c(NC(=O)CN2C(=O)c3ccccc3C2=O)oc(-c2ccccc2)c1-c1ccccc1
Answer: a. Cc1cccc(N2CCN(c3ccc(C(N)=O)cc3[N+](=O)[O-])CC2)c1C
{#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#}
Cc1cccc(N2CCN(c3ccc(C(N)=O)cc3[N+](=O)[O-])CC2)c1C
Cc1cccc(N2CCN(c3ccc(C(N)=O)cc3[N+](=O)[O-])CC2)c1C
[C][C][=C][C][=C][C][Branch2][Ring1][P][N][C][C][N][Branch2][Ring1][Branch1][C][=C][C][=C][Branch1][=Branch1][C][Branch1][C][N][=O][C][=C][Ring1][=Branch2][N+1][=Branch1][C][=O][O-1][C][C][Ring2][Ring1][C][=C][Ring2][Ring1][Branch2][C]
4-[4-(2,3-dimethylphenyl)piperazin-1-yl]-3-nitrobenzamide