Task: Answer the MCQ question.
Query: Which drug has a 16.266% human ether-à-go-go related gene (hERG) inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a) COc1ccc(C2C=C(c3ccccc3)Nc3nc(CCCO)nn32)cc1
b) CCCCc1nc2ccccc2n1CC(=O)NN
c) O=S(=O)(Nc1cc(S(=O)(=O)N2CCOCC2)ccc1NCC1CCCO1)c1ccccc1
d) CCc1ccc(NC(=O)CSc2n[nH]c(C)c2[N+](=O)[O-])cc1
Answer: b. CCCCc1nc2ccccc2n1CC(=O)NN
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CCCCc1nc2ccccc2n1CC(=O)NN
CCCCc1nc2ccccc2n1CC(=O)NN
2-(2-butylbenzimidazol-1-yl)acetohydrazide