Task: Answer the multiple-choice question.
Question: Which compound has a 16.672\% 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 other words.
Options:
[a] Cn1c(CNc2nc(-c3ccccc3)cs2)nnc1SCC(=O)N1CCc2ccccc21
[b] Cc1nc2c(ccc3c([N+](=O)[O-])cccc32)c(C)c1C
[c] CC(NC(=O)c1cccc(S(=O)(=O)N2CCN(Cc3ccccc3)CC2)c1)c1ccc(Br)cc1
[d] C/C(=N\NC(=O)c1nnn(-c2nonc2N)c1CSc1ccccc1)c1ccco1
Answer: b. Cc1nc2c(ccc3c([N+](=O)[O-])cccc32)c(C)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#}
Cc1nc2c(ccc3c([N+](=O)[O-])cccc32)c(C)c1C
Cc1nc2c(ccc3c([N+](=O)[O-])cccc32)c(C)c1C
2,3,4-trimethyl-7-nitrobenzo[h]quinoline