Task: Answer the multiple choice question.
Question: Which drug exhibits a 15.143\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
a. COc1ccc(OCCCC(=O)ON=C(N)c2ccccc2Cl)cc1
b. CCNC(=S)N1CCC(c2nc3cc(C)c(C)cc3[nH]2)CC1.O=C(O)C(=O)O
c. CNC(=S)NNc1ccccc1[N+](=O)[O-]
d. CCC(C)(C)n1nnnc1C(c1cc2cc(OC)ccc2[nH]c1=O)N1CCc2ccccc21
e. O=C1C2C3C=CC(C4CC34)C2C(=O)N1/N=C/c1ccc([N+](=O)[O-])s1
Answer: c. CNC(=S)NNc1ccccc1[N+](=O)[O-]
{#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#}
CNC(=S)NNc1ccccc1[N+](=O)[O-]
CNC(=S)NNc1ccccc1[N+](=O)[O-]
1-methyl-3-(2-nitroanilino)thiourea