Problem statement: Answer the multiple choice question.
Question: Which compound exhibits a 4.924\% 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.) O=C(Cn1c(=O)cnc2ccccc21)N1CCN(S(=O)(=O)c2ccccc2Br)CC1
b.) CCOc1cnn(Cc2ccccc2)c(=O)c1SCc1ccccc1
c.) Cc1c(Br)c(C(F)(F)F)nn1CC(=O)NCC1CCCO1
d.) CC12CCCCC1N(O)CN2O
Answer: d. CC12CCCCC1N(O)CN2O
{#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#}
CC12CCCCC1N(O)CN2O
CC12CCCCC1N(O)CN2O
1,3-dihydroxy-7a-methyl-2,3a,4,5,6,7-hexahydrobenzimidazole