Task: Answer the multiple-choice question.
Question: Which compound has a 18.000\% 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 other words.
Options:
a. CC1CCC2(CC1)NC(=O)N(NC(=O)CCl)C2=O
b. COc1ccc(-c2nc3ccccc3c(=O)o2)cc1OC
c. O=C(CSc1nnc(-c2c[nH]c3ccccc23)o1)c1ccc(-c2ccccc2)cc1
d. Cc1nnc2sc(-c3ccc(NC(=O)CSc4ccc(Cl)cc4)cc3)nn12
Answer: b. COc1ccc(-c2nc3ccccc3c(=O)o2)cc1OC
{#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#}
COc1ccc(-c2nc3ccccc3c(=O)o2)cc1OC
COc1ccc(-c2nc3ccccc3c(=O)o2)cc1OC
2-(3,4-dimethoxyphenyl)-3,1-benzoxazin-4-one