Task: Answer the multiple choice question.
Question: Which drug exhibits a 2.345\% human ether-à-go-go related gene (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 additional words.
Options:
[a] O=C(Nc1ccccc1)c1cccnc1Nc1ccccc1
[b] COc1ccc(-c2cc3onc(-c4c(Cl)cccc4Cl)c3c(=O)n2C)cc1
[c] CN(CC(=O)N1CCCCCC1)S(=O)(=O)c1cccc2cccnc12
[d] CNc1ccccc1C(C)(C)c1cc(-c2ccco2)n[nH]1
Answer: d. CNc1ccccc1C(C)(C)c1cc(-c2ccco2)n[nH]1
{#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#}
CNc1ccccc1C(C)(C)c1cc(-c2ccco2)n[nH]1
CNc1ccccc1C(C)(C)c1cc(-c2ccco2)n[nH]1
2-[2-[3-(furan-2-yl)-1H-pyrazol-5-yl]propan-2-yl]-N-methylaniline