Task: Answer the multiple-choice question.
Query: Which drug has a 16.556\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
[a] COc1cc(C(=O)NC(=S)N(C)Cc2ccccc2)cc(OC)c1OC
[b] CC(Nc1cc(C)cc(C)c1)=[N+](C)CCNS(=O)(=O)c1ccc(Cl)cc1.[I-]
[c] O=C(CCOc1ccccc1)Nc1ccnn1C1CCN(Cc2ccc(F)cc2)CC1
[d] CCc1ccccc1NC(=S)NN
Answer: d. CCc1ccccc1NC(=S)NN
{#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#}
CCc1ccccc1NC(=S)NN
CCc1ccccc1NC(=S)NN
1-amino-3-(2-ethylphenyl)thiourea